RU2332686C1 - Method of semi-active designation range-finding and pulsed range-finder - Google Patents

Abstract

FIELD: metrology.

SUBSTANCE: invention relates to range finding systems exploiting the reflection of search pulses and can be used in the missile range-finders using a semi-active designation. The method consists in pulsed search of a target, reception of search pulses reflected from the target, generation of reference frequency pulses, finding out the distance to the target from the reference frequency pulse number, reception of the target search signal, generation of triggering pulse, reception of the signal reflected from the target, stopping pulse shaping, finding out the distance to the target from the reference frequency pulse number during the interval between the triggering pulse and reception of reflected pulse. The pulsed range-finder incorporates transceiver circuit 1, reference frequency pulse generator 2, key 3, range counter 4 and memory unit with indicator 5, trigger 6, search pulse reception channel 7 and triggering signal shaper 8, reflected signal receiver 9 and stopping pulse shaper 10.

EFFECT: ranging with semi-active target designation.

2 cl, 1 dwg

Description

The invention relates to the field of ranging and can be used in range finders mounted on missiles with semi-active illumination.

A known method of measuring the distance to an object, including pulse sensing of an object, receiving probe pulses reflected from the object, generating pulses of the reference frequency, measuring the distance to the object by the number of probing pulses and the number of reference frequency pulses during the time between sending the probe and receiving the reflected pulses (Fedorov B .S. Lasers and their application. - Moscow, DOSAAF, 1973, p.51) / 1 /.

Known pulse range finder containing a transceiver path, serially connected pulse generator of a reference frequency, a key, a range counter, a memory device with an indicator, and also containing a counter of the number of measurement cycles, the output of which is connected to another input of a memory device with an indicator (US patent No. 3968491 , CL G01S 9/04, 1976) / 2 /.

The disadvantage of the data of the method and device is the inability to measure range with semi-active illumination of the object.

The objective of the invention is to provide the ability to measure range with semi-active illumination of the object.

The essence of the proposed method for measuring the distance to the object with semi-active illumination, including pulse sensing of the object, receiving sounding pulses reflected from the object, generating pulses of the reference frequency, measuring the distance to the object by the number of pulses of the reference frequency, additionally carry out the reception of the sounding signal, generating a triggering pulse, receiving reflected from the signal object, generating a stop pulse, measuring the distance to the object by the number of pulses of the reference frequency over time between the trigger pulse and the reception of the reflected pulse.

The claimed method is implemented in a pulsed range finder containing a transceiver path, serially connected pulse generator of a reference frequency, a key, a range counter and a memory device with an indicator that additionally contains a trigger, serially connected a channel for receiving a probe pulse and a driver of a triggering signal, serially connected to a receiver of the reflected signal and a stop pulse shaper, the output of the driver of the trigger signal being connected to the input of the unit gical trigger, stopping the pulse shaper output is connected to a trigger input for setting zero, the output of which is connected to the control input of the key.

The drawing shows a structural diagram of a pulse range finder. The pulse range finder contains a transceiver path 1, a pulse generator 2 of a reference frequency, a key 3, a range counter 4 and a memory device with an indicator 5, a trigger 6, a channel 7 for receiving a probing pulse and a driver 8 of a trigger signal, connected in series with the receiver 9 the reflected signal and the driver 10 stop pulses, and the output of the driver 8 of the trigger signal is connected to the installation input of the trigger unit 6, the output of the driver 10 of the stop signal The novelty is connected to the zero-setting input of trigger 6, the output of which is connected to the control input of key 3.

The pulse range finder operates as follows. The transceiver path 1 emits probing pulses towards the object. The sensing pulse receiving channel 7 receives the sensing pulses and starts the trigger signal generator 8, which generates a signal that transfers the trigger 6 to a single state. The signal from trigger 6 opens the key 3 and the pulses from the pulse generator 2 of the reference frequency are fed to the input of the range counter 4. The receiver 9 of the reflected signal receives the probe signal reflected from the object and starts the stop pulse former 10, whose signal triggers the trigger 6 to zero and locks the key 3, thereby stopping the pulse from the pulse generator 2 of the reference frequency to the input of the range counter 4. In the counter 4 range will be recorded a number proportional to the distance to the object, which is remembered and indicated by the storage device with indicator 5.

INFORMATION SOURCES

1. Fedorov B.S. Lasers and their application. - Moscow, DOSAAF, 1973, p. 51. (Prototype).

2. US patent No. 3968491, CL. G01S 9/04, 1976. (Prototype).

Claims (2)

1. A method of measuring the distance to the object with semi-active illumination, including pulse sensing of the object, receiving sounding pulses reflected from the object, generating pulses of the reference frequency, measuring the distance to the object by the number of pulses of the reference frequency, characterized in that the sound signal is received, generating a triggering pulse , receiving a signal reflected from the object, generating a stop pulse, measuring the distance to the object by the number of pulses of the reference frequency during the time between impulse and reception of the reflected impulse. 2. A pulse range finder comprising a transceiver path, serially connected pulse generator of a reference frequency, a key, a range counter and a memory with an indicator, characterized in that it comprises a trigger, serially connected a receiving channel of a probe pulse and a driver of a triggering signal, serially connected to a receiver of the reflected signal and a stop pulse shaper, wherein the output of the trigger signal shaper is connected to the installation input of the trigger unit, the output of the shapers The stop pulse generator is connected to the trigger zero input, the output of which is connected to the key control input.