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Object indication radar object simulator

A radar target simulation and target indication technology, applied in the field of radar reflection echo, can solve the problem of inability to generate echo signals, and achieve the effect of flexibility and strong function of repeated use

Inactive Publication Date: 2015-04-15
CHANGCHUN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The delay line technology has a wide working bandwidth, and the storage depth can easily reach hundreds of kilometers. The system is relatively simple, but it cannot generate complex echo signals.

Method used

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  • Object indication radar object simulator

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0013] The present invention will be further described below in conjunction with accompanying drawing.

[0014] The present invention is a C-band target indicating radar target simulator, comprising a transmitting antenna 1, a transmitting front end 2, a radiation pulse generating unit 3, a high-precision reference source, a C-band agile frequency source 4, an integrated control unit 5, and a digital radio frequency storage Unit 6 , receiving front end 7 and receiving antenna 8 .

[0015] The high-precision reference source and the C-band agile frequency source include a high-performance DSP chip 21, a first DDS22, a high-precision reference frequency source 23, a second DDS24, a first 16-frequency multiplication circuit 25, and a second 16-frequency multiplication circuit 26 , electric tuning filter bank 27, first amplifier 28 and second amplifier 29; Described integrated control unit 5 is made of a slice FPGA chip, comprises waveform recovery logic 31, DRFM interface...

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Abstract

The invention discloses an object indication radar object simulator which is mainly applied to simulating radar reflection echoes of a missile type object and an airplane type object in a real state close to reality. The object indication radar object simulator comprises an emission antenna, an emission front end, a radiation pulse generation unit, a high precision reference source and C-wave band agility frequency source, a comprehensive control unit, a digital radio frequency memory unit, a receiving front end and a receiving antenna. Radar signals, after being converted down to an intermediate frequency through the receiving front end, penetrate into the radio frequency memory unit and are stored there, the comprehensive control unit performs control according to an object batch, a speed and distance information which are to be simulated, the radio frequency memory unit generates intermediate frequency signals of object echoes, then the radiation pulse generation unit and the emission front end simulate magnitude information and Doppler information of the echoes, and final, the emission antenna performs emission. The stimulator can simulate radar echo information of a real object and is mainly applied to dynamic object simulation, outfield test simulation, integrated practice and testing of a radar system.

Description

technical field [0001] The present invention relates to the generation of radar reflection echoes of missile-type and aircraft-type targets in shipboard target designating radars close to the real state. Based on the flexible layout of the field experiment environment, it can provide the simulated target for the field test for the target indicating radar, and the hardware platform for testing the working performance of the target indicating radar. Its essence is the target indicating radar target simulator. Background technique [0002] With the rapid development of radar technology, modern radar systems are becoming increasingly complex and functionally diverse. It is difficult and costly to conduct radar detection in the field. Therefore, simulation technology is widely used in debugging and performance evaluation of some radar systems. The use of radar target simulation technology can shorten the development cycle of radar and reduce the cost of radar development. At the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/40
CPCG01S7/4052
Inventor 崔炜陈磊
Owner CHANGCHUN UNIV OF SCI & TECH
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