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Radar echo signal simulator suitable for onboard radar system

A signal simulator, radar echo technology, applied in radio wave measurement systems, instruments, etc., can solve the problems of low fidelity and classification, and achieve the effect of strong fidelity, reducing measurement errors, and saving calculation time.

Active Publication Date: 2015-05-13
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some do not classify the clutter probability distribution model of the specific terrain, resulting in the problem of low fidelity

Method used

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  • Radar echo signal simulator suitable for onboard radar system
  • Radar echo signal simulator suitable for onboard radar system
  • Radar echo signal simulator suitable for onboard radar system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0161] Table 1: Complete the setting of the platform trajectory by inputting the initial position, attitude characteristics, motion parameters, and flight error parameters

[0162]

[0163] Table 2: Setting Radar Parameters

[0164]

[0165] Table 3: Setting Antenna Parameters

[0166]

[0167] Table 4: Complete the target flight trajectory simulation according to the number of targets, initial position, target speed, etc.

[0168]

[0169] Table 5: Set the complexity of clutter, ground and sea conditions, scenarios, probability distribution, composite scene weight coefficient, power spectrum, and wind speed to complete the clutter scene simulation

[0170]

[0171] The clutter scattering unit is divided by the grid mapping method; the clutter backscatter coefficient σ is calculated according to the grazing angle Morchin model of the scattering unit 0 , the simulation of the clutter γ sequence is completed by using the Zero Memory Nonlinear Transformation (ZMN...

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Abstract

The invention discloses a radar echo signal simulator suitable for an onboard radar system. The radar echo signal simulator suitable for the onboard radar system comprises a parameter setting module (10), a data generation module (20), a data scheduling module (30), a digital to analogue (D / A) conversion module (40), a frequency mixing module (50) and an intermediate frequency oscillator (60). The radar echo signal simulator suitable for the onboard radar system combines an application scene model with radar parameters and antenna parameters, uses a clutter statistics distributing model and a power spectrum model to simulate a clutter series corresponding to a needed background topography, uses a mesh generation method to generate a clutter echo signal, and then uses position information of a needed sensitive area to generate a related target echo wave, and finally fuses the clutter signal with a target signal so as to generate a radar echo wave which conforms to test requirements and send the radar echo wave back to a test radar. The radar echo signal simulator suitable for the onboard radar system can be used in multiple links of research and development, production testing, performance detection and the like of a radar device on an airship, reduces frequency of outfield experiments to the utmost, saves experiment cost, and shortens a research period.

Description

technical field [0001] The invention relates to a radar echo signal simulator, more particularly, to a radar echo signal simulator capable of performing performance analysis on the echo signal generated by a shipborne radar system. Background technique [0002] The topic of radar simulation covers a wide range. Radar systems come in many varieties and are used in a variety of ways. Radar can be located on the ground, mounted on a ship, or mounted on an aircraft or space vehicle. There are several functions of a radar system, ranging from simply finding targets to identifying them, and the purpose of the simulation is also different. In general, no single simulation program is suitable for all situations. A simulation program that is suitable for one application may not be suitable at all for another application. [0003] The radar signal simulator is an indispensable and important part in the development, production and testing of radar systems. Modern radar systems are...

Claims

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Application Information

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IPC IPC(8): G01S7/40
CPCG01S7/4052
Inventor 于泽张莉李景文
Owner BEIHANG UNIV
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