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RU581784C - Method of measuring distances - Google Patents

Method of measuring distances

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Publication number
RU581784C
RU581784C SU762367198A SU2367198A RU581784C RU 581784 C RU581784 C RU 581784C SU 762367198 A SU762367198 A SU 762367198A SU 2367198 A SU2367198 A SU 2367198A RU 581784 C RU581784 C RU 581784C
Authority
RU
Russia
Prior art keywords
polarized
signals
reflected
measuring distances
determining
Prior art date
Application number
SU762367198A
Other languages
Russian (ru)
Inventor
Ю.С. Балин
И.В. Самохвалов
Original Assignee
Институт Оптики Атмосферы Со Ан Ссср
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Институт Оптики Атмосферы Со Ан Ссср filed Critical Институт Оптики Атмосферы Со Ан Ссср
Priority to SU762367198A priority Critical patent/RU581784C/en
Application granted granted Critical
Publication of RU581784C publication Critical patent/RU581784C/en

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Abstract

СПОСОБ ИЗМЕРЕНИЯ РАССТОЯНИЙ путем излучени  импульсов электромагнитных волн, приема отраженного сигнала и определени  времени его запаз- дывани То тличающийс  тем, что, с целью повышени  помехозащищенности, излучаемые импульсы пол ризуют, а отраженные сигналы анализируют по пол ризации и выдел ют сигналы с совпадающими по времени пол ризованной и депол ризованной компонентами.METHOD OF DISTANCE MEASUREMENT by emitting electromagnetic wave pulses, receiving the reflected signal and determining the time delay It is different in that, in order to increase the noise immunity, the emitted pulses are polarized, and the reflected signals are analyzed by polarization and the signals are matched with the same time polarized and depolarized components.

Description

Изобретение касаетс  измерени  рассто ний до различных объектов, например поверхности планет, с летательных и спускаемых аппаратов, или обнаружени  местоположени  движущихс  в атмосфере объектов.The invention relates to measuring distances to various objects, such as the surface of planets, from aircraft and descent vehicles, or to locating objects moving in the atmosphere.

Известны способы определени  дальности до объектов путем посылки импулъса света малой длительности, регистрации эхосигнала и определени  интервала времени, в течение которого эхо-сигнал достигает максимального значени .Known methods for determining the distance to objects by sending a light pulse of short duration, registering an echo signal and determining the time interval during which the echo signal reaches its maximum value.

Однако этот способ характеризуетс  недостаточно высокой точностью, вследствие вли ни  атмосферных образований, расположенных по трассе локатор - лоцируемый объект.However, this method is not characterized by a sufficiently high accuracy, due to the influence of atmospheric formations located along the locator-located object path.

Например, при локации с борта самолета величина сигнала, отраженного от облаков , зачастую равна или превышает величину ситнала, отраженного от земной поверхности, покрытой лесом или водой.For example, when locating from an airplane, the magnitude of the signal reflected from the clouds is often equal to or greater than the magnitude of the signal reflected from the earth's surface covered with forest or water.

Наиболее близким по технической сущности и достигаемому результату к предлагаемому  вл етс  способ измерени  дальности путем излучени  импульсов электромагнитных волн, приема отраженного сигнала и определени  времени его запаздывани , по которому дл  повышени  помехозащищенности прин тый отраженный сигнал стробируют во времени и выдел ют его максимальное значение.The closest in technical essence and the achieved result to the proposed one is a method of measuring the distance by emitting pulses of electromagnetic waves, receiving the reflected signal and determining the delay time, according to which, to increase the noise immunity, the received reflected signal is gated in time and its maximum value is extracted.

Недостатком способа  вл етс  необходимоЬть предварительной ориентировочной информации о положении объекта, что затрудн ет работу с движущимис  объектами.The disadvantage of this method is the need for preliminary indicative information about the position of the object, which makes it difficult to work with moving objects.

Цель изобретени  - повышение помехозащищенности путем исключени  вли ни  на результаты атмосферных метеообразований .The purpose of the invention is to increase noise immunity by eliminating the effect on atmospheric meteorological results.

Указанна  цель достигаетс  тем, что излучаемые импульсы пол ризуют, а отраженные сигналы анализируют по пол ризации и выдел ют сигналы, пол ризованна  и депоThis goal is achieved by the fact that the emitted pulses are polarized, and the reflected signals are analyzed by polarization and signals, polarized and depot

SU762367198A 1976-06-07 1976-06-07 Method of measuring distances RU581784C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU762367198A RU581784C (en) 1976-06-07 1976-06-07 Method of measuring distances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU762367198A RU581784C (en) 1976-06-07 1976-06-07 Method of measuring distances

Publications (1)

Publication Number Publication Date
RU581784C true RU581784C (en) 1992-12-15

Family

ID=20663796

Family Applications (1)

Application Number Title Priority Date Filing Date
SU762367198A RU581784C (en) 1976-06-07 1976-06-07 Method of measuring distances

Country Status (1)

Country Link
RU (1) RU581784C (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Патент US N; 3515480, кл. G 01 С 3/00. опублик. 1970.Прилепин М.Т., Голубев А.Н. Квантовые оптические генераторы в геодезических измерени х. М.: Недра, 1972, с. 114-126. *

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