CN105472858A - Generation and synthesizing device of multi-channel frequency signals - Google Patents

Abstract

The invention relates to a multi-channel frequency signal generation and synthesis device, which includes: a signal parameter acquisition module, which acquires corresponding signal parameters according to instructions input from the periphery; a signal generation module, connected in series with the signal parameter acquisition module, Generate a 0-degree phase sawtooth wave FM signal, a 180-degree phase sawtooth wave FM signal and a single-frequency signal according to the signal parameters; a signal synthesis module is connected in series with the signal generation module, and the signal from the signal generation module is processed. Combining power to obtain a composite signal; and a composite signal output module connected in series with the signal composite module to output the composite signal. The invention can be realized only by one hardware output channel, thereby reducing hardware cost and improving the performance of synchronization and response speed among signals.

Description

A device for generating and synthesizing multiple frequency signals

technical field

The invention relates to a device for generating a slow extraction frequency signal of a heavy ion medical accelerator, in particular to a device for generating and synthesizing a multi-channel frequency signal.

Background technique

In heavy ion medical accelerators, it is commonly used to perturb the beam by applying an RF electric field whose frequency matches the transverse third-order resonance frequency, so that the emittance of the beam gradually increases and then is drawn out, that is, the method of RFKO (RF -KnockOut, high frequency removal) method. The RFKO method has many advantages, for example, the LATTICE parameters of the accelerator can be kept unchanged during the slow extraction process, and it is easy to quickly control the RF switch for point scanning and the adjustment of the time structure of the beam, etc. Since the proton beam particles to be extracted in the proton accelerator have a certain momentum and orbital distribution, that is, the betatron (electron betatron) oscillation frequency has a certain distribution, and accordingly, the frequency signal of the transverse RFKO also needs to have a certain distribution. There are two regions in the slow extraction phase diagram, namely the stable region inside the triangular region and the unstable region outside the triangular region. When the frequency of the transverse RF field matches the tune (operating point) of the stable region, the particles in the stable region will move toward the unstable region due to the increase in amplitude. Particles at the edge of the stable zone quickly enter the unstable zone, and are finally drawn out after running for several laps, while particles inside the stable zone diffuse toward the edge of the stable zone. Therefore, the RF frequency range should cover the stable area and its boundary. In order to simplify the design of the transverse RF frequency signal, the transverse RF frequency signal adopts a frequency signal with a center frequency f _c and a bandwidth of Δf. Among them, the center frequency f _c and the bandwidth Δf are calculated and determined by the following empirical formula:

f _c = (N ± q) f _rev (1),

$\mathrm{<span\; class="notranslate">\; \&Delta;</span>}\mathrm{<span\; class="notranslate">\; f</span>}<span\; class="notranslate">\; =</span>\sqrt{{\mathrm{<span\; class="notranslate">\; \&Delta;q</span>}}_{\mathrm{<span\; class="notranslate">\; A</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; \&Delta;q</span>}}_{\mathrm{<span\; class="notranslate">\; B</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}}{\mathrm{<span\; class="notranslate">\; f</span>}}_{\mathrm{<span\; class="notranslate">\; r</span>}\mathrm{<span\; class="notranslate">\; e</span>}\mathrm{<span\; class="notranslate">\; v</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 2</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; ,</span>$

In formula (1), N is any integer, and q is the fractional part of the horizontal operating point; in formula (2), Δq _A is the difference between the horizontal third-order resonance point and the operating point, and Δq _B is the difference between the momentum expansion and the horizontal color product product. For the RF frequency signal with the center frequency f _c and the bandwidth Δf, it can be obtained by sawtooth wave modulation. However, for a sawtooth FM signal, there will be a situation where the signal frequency does not match the tune in the stable zone, so beam particles cannot be extracted or the extraction effect is not good during this mismatching time. To compensate for this situation, another sawtooth FM signal can be applied at the same time, and the phase difference between the two can be 180 degrees. In addition, in order to allow the particles to be extracted stably, a signal that matches the tune at the edge of the stable area is required, and the signal is realized by a single-frequency signal. To sum up, the frequency signal of RFKO adopts 0-degree phase sawtooth wave FM signal, 180-degree phase sawtooth wave FM signal and the composite signal of single-frequency signal have the best effect.

Therefore, it is necessary to provide a device capable of generating and synthesizing a 0-degree phase sawtooth FM signal, a 180-degree phase sawtooth FM signal and a single-frequency signal. Existing devices require three hardware output channels to generate the three required signals respectively, and then synthesize the three signals through a power combiner, resulting in high hardware costs and unsatisfactory synchronization and response speed between the signals .

Contents of the invention

In order to solve the above problems in the prior art, the present invention aims to provide a multi-channel frequency signal generating and synthesizing device to provide a composite signal of a 0-degree phase sawtooth wave FM signal, a 180-degree phase sawtooth wave FM signal and a single-frequency signal , and can reduce hardware cost, improve synchronization between signals and response speed performance.

In order to achieve the above object, the present invention adopts the following technical solutions:

A multi-channel frequency signal generating and synthesizing device, comprising:

A signal parameter acquisition module, which acquires corresponding signal parameters according to instructions input from the periphery;

A signal generation module, connected in series with the signal parameter acquisition module, generates a 0-degree phase sawtooth FM signal, a 180-degree phase sawtooth FM signal and a single-frequency signal according to the signal parameters;

A signal synthesis module, connected in series with the signal generation module, performs power synthesis on the signals from the signal generation module to obtain a composite signal; and

A synthesized signal output module is connected in series with the signal synthesized module to output the synthesized signal.

Further, the signal generation module includes a 0-degree phase sawtooth wave FM signal generation module, a 180-degree phase sawtooth wave FM signal generation module, and a single-frequency signal generation module connected in parallel, wherein,

The 0-degree phase sawtooth wave FM signal generating module is configured to generate the 0-degree phase sawtooth wave FM signal according to the signal parameters;

The 180-degree phase sawtooth wave FM signal generation module is configured to generate the 180-degree phase sawtooth wave FM signal according to the corresponding signal parameters; and

The single-frequency signal generating module is configured to generate the single-frequency signal according to the signal parameters.

Preferably, the 0-degree phase sawtooth wave FM signal generation module includes:

An initial 0-degree phase sawtooth wave generation unit connected to the signal parameter acquisition module, which generates an initial 0-degree phase sawtooth wave according to the signal parameters; and

A 0-degree phase sawtooth wave frequency modulation unit connected in series with the initial 0-degree phase sawtooth wave generation unit, which performs frequency modulation processing on the initial 0-degree phase sawtooth wave according to the signal parameters to obtain the 0-degree phase sawtooth wave frequency modulation Signal.

Preferably, the 180-degree phase sawtooth wave FM signal generation module includes:

An initial 180-degree phase sawtooth wave generation unit connected to the signal parameter acquisition module, which generates an initial 180-degree phase sawtooth wave according to the signal parameters; and

A 180-degree phase sawtooth frequency modulation unit connected in series with the initial 180-degree phase sawtooth wave generation unit, which performs frequency modulation processing on the initial 180-degree phase sawtooth wave according to the signal parameters, and obtains the 180-degree phase sawtooth wave FM signal.

Further, the multi-channel frequency signal generating and synthesizing device is realized based on an arbitrary signal generator, or based on a field programmable gate array and a direct digital frequency synthesizer, or based on a field programmable gate array and a digital-to-analog converter.

By adopting the above technical solution, the present invention uses the signal generating module to generate and synthesize 0-degree phase sawtooth wave FM signal, 180-degree phase sawtooth wave FM signal and single-frequency signal through software, and finally only need to pass through one hardware output channel to output through composite signal. Compared with the device in the prior art that requires three hardware output channels to generate the required three signals respectively, and then synthesizes the three signals through a power combiner, the present invention can reduce the hardware cost and greatly improve the synchronization and Responsive speed performance.

Description of drawings

Fig. 1 is the software principle block diagram of multi-channel frequency signal generation and synthesis device of the present invention;

FIG. 2 is a schematic diagram of the hardware connection of the device for generating and synthesizing multiple frequency signals of the present invention.

detailed description

Below in conjunction with the drawings, preferred embodiments of the present invention are given and described in detail.

The present invention is a multi-channel frequency signal generating and synthesizing device, which is used to provide a composite signal of a 0-degree phase sawtooth wave FM signal, a 180-degree phase sawtooth wave FM signal, and a single-frequency signal. The so-called sawtooth wave frequency modulation is to perform frequency modulation on the sawtooth wave signal, so that the frequency of the modulated signal is proportional to the amplitude of the sawtooth wave signal. Since the amplitude of the sawtooth wave changes linearly, it is equivalent to a linear frequency sweep, and the sawtooth wave The advantage of frequency modulation over direct linear frequency sweeping is that the starting phase of the signal, which corresponds to the starting frequency of the signal, is easier to adjust.

Among them, the sawtooth FM signal V _FM with center frequency f _c , bandwidth Δf _c , and modulation period T _FM can be expressed by the following formula:

${\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; f</span>}\mathrm{<span\; class="notranslate">\; m</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; =</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; R</span>}\mathrm{<span\; class="notranslate">\; f</span>}}\mathrm{<span\; class="notranslate">\; the\; s</span>}\mathrm{<span\; class="notranslate">\; i</span>}\mathrm{<span\; class="notranslate">\; no</span>}{<span\; class="notranslate">\; \&Integral;</span>}_{\mathrm{<span\; class="notranslate">\; 0</span>}}^{\mathrm{<span\; class="notranslate">\; t</span>}}<span\; class="notranslate">\; \&lsqb;</span>\mathrm{<span\; class="notranslate">\; 2</span>}{\mathrm{<span\; class="notranslate">\; \&pi;f</span>}}_{\mathrm{<span\; class="notranslate">\; c</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; the\; s</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; \&tau;</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; \&rsqb;</span>\mathrm{<span\; class="notranslate">\; d</span>}\mathrm{<span\; class="notranslate">\; \&tau;</span>}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 3</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; ,</span>$

Therefore, the synthetic signal V(t) of the above three signals of 0-degree phase sawtooth wave FM signal, 180-degree phase sawtooth wave FM signal and single-frequency signal can be expressed as follows:

$\mathrm{<span\; class="notranslate">\; V</span>}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; =</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; R</span>}\mathrm{<span\; class="notranslate">\; f</span>}}<span\; class="notranslate">\; \{</span>\mathrm{<span\; class="notranslate">\; the\; s</span>}\mathrm{<span\; class="notranslate">\; i</span>}\mathrm{<span\; class="notranslate">\; no</span>}{<span\; class="notranslate">\; \&Integral;</span>}_{\mathrm{<span\; class="notranslate">\; 0</span>}}^{\mathrm{<span\; class="notranslate">\; t</span>}}<span\; class="notranslate">\; \&lsqb;</span>\mathrm{<span\; class="notranslate">\; 2</span>}{\mathrm{<span\; class="notranslate">\; \&pi;f</span>}}_{\mathrm{<span\; class="notranslate">\; c</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; the\; s</span>}}_{\mathrm{<span\; class="notranslate">\; 1</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; \&tau;</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; \&rsqb;</span>\mathrm{<span\; class="notranslate">\; d</span>}\mathrm{<span\; class="notranslate">\; \&tau;</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; the\; s</span>}\mathrm{<span\; class="notranslate">\; i</span>}\mathrm{<span\; class="notranslate">\; no</span>}{<span\; class="notranslate">\; \&Integral;</span>}_{\mathrm{<span\; class="notranslate">\; 0</span>}}^{\mathrm{<span\; class="notranslate">\; t</span>}}<span\; class="notranslate">\; \&lsqb;</span>\mathrm{<span\; class="notranslate">\; 2</span>}{\mathrm{<span\; class="notranslate">\; \&pi;f</span>}}_{\mathrm{<span\; class="notranslate">\; c</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; the\; s</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; \&tau;</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; \&rsqb;</span>\mathrm{<span\; class="notranslate">\; d</span>}\mathrm{<span\; class="notranslate">\; \&tau;</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; the\; s</span>}\mathrm{<span\; class="notranslate">\; i</span>}\mathrm{<span\; class="notranslate">\; no</span>}\mathrm{<span\; class="notranslate">\; 2</span>}{\mathrm{<span\; class="notranslate">\; \&pi;f</span>}}_{\mathrm{<span\; class="notranslate">\; k</span>}}\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; \}</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 4</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; ,</span>$

In the above formula:

${\mathrm{<span\; class="notranslate">\; the\; s</span>}}_{\mathrm{<span\; class="notranslate">\; 1</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; \&tau;</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; \&pi;</span>}\frac{{\mathrm{<span\; class="notranslate">\; \&Delta;f</span>}}_{\mathrm{<span\; class="notranslate">\; c</span>}}}{{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; f</span>}\mathrm{<span\; class="notranslate">\; m</span>}}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; \&tau;</span>}<span\; class="notranslate">\; -</span>\frac{{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; f</span>}\mathrm{<span\; class="notranslate">\; m</span>}}}{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; 0</span>}<span\; class="notranslate">\; \&le;</span>\mathrm{<span\; class="notranslate">\; \&tau;</span>}<span\; class="notranslate">\; \&le;</span>{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; f</span>}\mathrm{<span\; class="notranslate">\; m</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 2</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; ,</span>$

${\mathrm{<span\; class="notranslate">\; the\; s</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; \&tau;</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; =</span>\left\{\begin{array}{c}\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; \&pi;</span>}\frac{{\mathrm{<span\; class="notranslate">\; \&Delta;\; f</span>}}_{\mathrm{<span\; class="notranslate">\; c</span>}}}{{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; f</span>}\mathrm{<span\; class="notranslate">\; m</span>}}}\mathrm{<span\; class="notranslate">\; \&tau;</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; 0</span>}<span\; class="notranslate">\; \&le;</span>\mathrm{<span\; class="notranslate">\; \&tau;</span>}<span\; class="notranslate">\; \&le;</span>{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; f</span>}\mathrm{<span\; class="notranslate">\; m</span>}}<span\; class="notranslate">\; /</span>\mathrm{<span\; class="notranslate">\; 2</span>}\\ \mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; \&pi;</span>}\frac{{\mathrm{<span\; class="notranslate">\; \&Delta;f</span>}}_{\mathrm{<span\; class="notranslate">\; c</span>}}}{{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; f</span>}\mathrm{<span\; class="notranslate">\; m</span>}}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; \&tau;</span>}<span\; class="notranslate">\; -</span>\frac{{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; f</span>}\mathrm{<span\; class="notranslate">\; m</span>}}}{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; ,</span>{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; f</span>}\mathrm{<span\; class="notranslate">\; m</span>}}<span\; class="notranslate">\; /</span>\mathrm{<span\; class="notranslate">\; 2</span>}<span\; class="notranslate">\; \&le;</span>\mathrm{<span\; class="notranslate">\; \&tau;</span>}<span\; class="notranslate">\; \&le;</span>{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; f</span>}\mathrm{<span\; class="notranslate">\; m</span>}}\end{array}\right.<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 6</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; ,</span>$

In the above formulas (4), (5) and (6), _VRF is the amplitude of the synthesized signal ( _VRF is a preset fixed value), _fc is the center frequency, _Δfc is the bandwidth, and _TFM is the sawtooth wave Signal period, f _k is the frequency of single-frequency signal, s ₂ (τ) is the expression of 0-degree phase sawtooth wave, and s ₁ (τ) is the expression of 180-degree phase sawtooth wave.

It can be seen from formula (4) that the synthesized signal V(t) is the sum of the above three signals, so to realize the synthesis of these three signals, it is first necessary to generate a 0-degree phase sawtooth wave FM signal and a 180-degree phase sawtooth wave FM signal respectively and a single-frequency signal, which is then power-combined. Based on this, as shown in Figure 1, the multi-channel frequency signal generation and synthesis device of the present invention includes a signal parameter acquisition module 1, a signal generation module 10, a signal synthesis module 5, and a synthesis signal output module 6 connected in series in sequence . Wherein, the signal generation module 10 includes a 0-degree phase sawtooth wave FM signal generation module 2, a 180-degree phase sawtooth wave FM signal generation module 3 and a single Frequency signal generation module 4.

Each module is described in detail below:

The signal parameter acquisition module 1 is used to acquire corresponding signal parameters according to the actual demand input from the peripheral, including: the above-mentioned center frequency f _c , bandwidth Δf _c , modulation period T _FM and single-frequency signal frequency f _k , etc. When the demand changes, the acquired signal parameters will be updated in real time.

The 0-degree phase sawtooth wave FM signal generation module 2 includes an initial 0-degree phase sawtooth wave generation unit 21 and a 0-degree phase sawtooth wave frequency modulation unit 22 connected in sequence between the signal parameter acquisition module 1 and the signal synthesis module 5, which first Generate an initial 0-degree phase sawtooth wave to be modulated by the initial 0-degree phase sawtooth wave generation unit 21, and then perform frequency modulation processing on the initial 0-degree phase sawtooth wave through the 0-degree phase sawtooth wave frequency modulation unit 22, wherein the frequency modulation process is now There are technologies, and the specific steps are as follows: firstly adjust the bandwidth of the initial 0-degree phase sawtooth wave to the bandwidth Δf _c , and then up-convert the bandwidth-adjusted initial 0-degree phase sawtooth wave to the center frequency f _c , so as to obtain the final required 0 degree phase sawtooth FM signal.

The 180-degree phase sawtooth wave FM signal generation module 3 includes an initial 180-degree phase sawtooth wave generation unit 31 and a 0-degree phase sawtooth wave frequency modulation unit 32 connected successively between the signal parameter acquisition module and the signal synthesis module. The 180-degree phase sawtooth wave generation unit 21 produces an initial 180-degree phase sawtooth wave to be modulated, and then the initial 180-degree phase sawtooth wave is FM-processed by the 180-degree phase sawtooth frequency modulation unit 22, wherein the frequency modulation process is as follows: first the initial The bandwidth of the 180-degree phase sawtooth wave is adjusted to Δf _c , and then the bandwidth-adjusted initial 180-degree phase sawtooth wave is up-converted to the center frequency f _c , so as to obtain the final desired 180-degree phase sawtooth wave FM signal.

The single-frequency signal generation module 4 is used to generate a single-frequency signal (ie, a sine wave signal) with a frequency f _k , wherein the data length of the signal is the same as that of the 0-degree and 180-degree phase sawtooth FM signals.

The signal combining module 5 is used for power combining the aforementioned 0-degree phase sawtooth wave FM signal, 180-degree phase sawtooth wave FM signal and single-frequency signal to obtain a synthesized signal.

The synthesized signal output module 6 is used to output the above synthesized signal.

The hardware of multi-channel frequency signal generation and synthesizing device of the present invention can be based on any signal generator or based on FPGA (field programmable gate array)+DDS (direct digital frequency synthesizer) or based on FPGA+DAC (digital-to-analog converter) realization . The following takes the PXI (PCI extensions for Instrumentation, PCI extension for instrument system) arbitrary signal generator 7 in the embodiment shown in FIG. 2 as an example for illustration.

As shown in Figure 2, the PXI arbitrary signal generator 7 includes a controller 71 and an output channel 72 connected by communication, wherein, the signal parameter acquisition module 1, the signal generation module 10 and the signal synthesis module 5 are integrated in the controller 71, The synthetic signal output module 6 can be realized through an output channel 72 of the PXI arbitrary signal generator. In this embodiment, the controller 71 is also connected to a peripheral OPI (OperatorInterface, operator control interface) 8 through an Ethernet interface, so that the corresponding demand command can be input through the OPI8 for the signal parameter acquisition module in the controller 71 1 Update the corresponding signal parameters.

What is described above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Various changes can also be made to the above embodiments of the present invention. That is to say, all simple and equivalent changes and modifications made according to the claims and description of the application for the present invention fall within the protection scope of the claims of the patent of the present invention. What is not described in detail in the present invention is conventional technical content.

Claims (5)

1. channelized frequencies signal produces and a synthesizer, it is characterized in that, comprising:

One signal parameter acquisition module, it obtains corresponding each signal parameter according to the instruction of periphery input;

One signal generator module, connects with described signal parameter acquisition module, produces one 0 degree of phase place sawtooth phase modulation signals, one 180 degree of phase place sawtooth phase modulation signals and simple signals according to described signal parameter;

One signal synthesizing module, connects with described signal generator module, the signal from signal generator module is carried out power combing and obtains a composite signal; And

One composite signal output module, connects with described signal synthesizing module, is exported by described composite signal.

2. channelized frequencies signal according to claim 1 produces and synthesizer, it is characterized in that, described signal generator module comprises one 0 degree of phase place sawtooth phase modulation signal generator modules parallel with one another, one 180 degree of phase place sawtooth phase modulation signal generator modules and a simple signal generation module, wherein

Described 0 degree of phase place sawtooth phase modulation signal generator module is set to produce described 0 degree of phase place sawtooth phase modulation signal according to described signal parameter;

Described 180 degree of phase place sawtooth phase modulation signal generator modules are set to produce described 180 degree of phase place sawtooth phase modulation signals according to the described signal parameter of correspondence; And

Described simple signal generation module is set to produce described simple signal according to described signal parameter.

3. channelized frequencies signal according to claim 2 produces and synthesizer, and it is characterized in that, described 0 degree of phase place sawtooth phase modulation signal generator module comprises:

The one initial 0 degree of phase place sawtooth waveforms generation unit being connected to described signal parameter acquisition module, it produces initial 0 degree of phase place sawtooth waveforms according to described signal parameter; And

The one 0 degree of phase place sawtooth phase modulation unit be in series with described initial 0 degree of phase place sawtooth waveforms generation unit, carries out frequency modulation process according to described signal parameter to described initial 0 degree of phase place sawtooth waveforms and obtains described 0 degree of phase place sawtooth phase modulation signal.

4. channelized frequencies signal according to claim 2 produces and synthesizer, and it is characterized in that, described 180 degree of phase place sawtooth phase modulation signal generator modules comprise:

The one initial 180 degree of phase place sawtooth waveforms generation units being connected to described signal parameter acquisition module, it produces initial 180 degree of phase place sawtooth waveforms according to described signal parameter; And

The one 180 degree of phase place sawtooth phase modulation unit be in series with described initial 180 degree of phase place sawtooth waveforms generation units, carry out frequency modulation process according to described signal parameter to described initial 180 degree of phase place sawtooth waveforms, and obtain described 180 degree of phase place sawtooth phase modulation signals.

5. channelized frequencies signal according to claim 1 produces and synthesizer, it is characterized in that, described channelized frequencies signal produce and synthesizer based on arbitrarily signal generating device or based on field programmable gate array and Direct Digital Frequency Synthesizers or realize based on field programmable gate array and digital analog converter.