Pulse radar echo signal generator and signal generating method thereof

A pulsed radar and echo signal technology, applied in instruments, radio wave measurement systems, etc., can solve the problems of flexibility limitation and low frequency of pulsed radar signals, and achieve the effect of high frequency, complex waveform and flexible use

Inactive Publication Date: 2010-12-15
CHONGQING UNIV
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Problems solved by technology

[0006] The present invention aims at the prior art radar baseband echo signal simulator needs to be controlled by a PC, once the pulse radar signal parameters change, it needs to be recalculated by the PC, and then downloaded to the DSP, the flexibility is limited, the DSP signal generator The generated pulse radar signal has low frequency, simple waveform, and it is difficult to restore the radar echo signal in a more complex environment. A pulse radar echo signal generator that can generate a more complex waveform is designed to simulate pulse radar in a specific environment. The echo signal provides an economical and effective means to verify the effectiveness of radar target detection and tracking algorithms

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  • Pulse radar echo signal generator and signal generating method thereof
  • Pulse radar echo signal generator and signal generating method thereof
  • Pulse radar echo signal generator and signal generating method thereof

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Embodiment Construction

[0014] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0015] figure 1 It is a block diagram of the pulse radar echo signal generator. According to the pulse radar echo signal parameters input by the pulse radar parameter generator, the synchronization signal generator, target signal generator, noise generator, clutter generator, signal synthesizer, etc. are controlled in real time. The module generates pulsed radar echo signals.

[0016] Let x(t) represent the pulsed radar echo signal including the target echo signal, noise and clutter, and the pulsed radar echo signal x(t) in a single period is expressed as:

[0017] x(t)=s(t)+n(t)+c(t) 0≤t≤T

[0018] Among them, s(t), n(t) and c(t) represent the target echo, noise and clutter respectively, and T is the period of the pulse radar.

[0019] figure 2 It is the hardware block diagram of pulse radar echo signal generator, including digital signal processin...

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Abstract

The invention provides a pulse radar echo signal generator and a signal generating method thereof, relating to the moving target detection technical field. The pulse radar signal generator utilizes parameters input by a pulse radar parameter generator to control a synchronizing signal generator, a noise generator, a target signal generator, a noise wave generator and a signal synthesizer in real time, and a full in-kind pulse radar echo signal is generated. The target, noise and noise wave in the pulse radar echo signal of the invention can be regulated in wider range, the pulse radar echo signal can be used for verifying target detecting and tracking performances of a radar signal processing system, thus being an economic and effective means and having wide application range.

Description

technical field [0001] The invention relates to the technical field of moving target detection, in particular to a pulse radar echo signal generation technology. Background technique [0002] Pulse radar is easy to achieve accurate ranging, and the receiving echo is during the rest period of the transmitting pulse, and there is no problem of isolation between the receiving antenna and the transmitting antenna. In view of these advantages, pulse radar has become one of the most widely used radars at present. It is not only used in the military as a weapon, but also an indispensable device for target search, tracking, measurement, weapon guidance, control, and identification of friend and foe. Scientific research also plays a very important role, such as airport and seaport management radar for weather forecasting and navigation. [0003] Extracting information about moving targets from radar echo signals (such as the distance from the target to the radar, distance change rat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/40
Inventor 李正周郑微雷晓龙王宇徐伯禺谭菊刘书君
Owner CHONGQING UNIV
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