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Radar Altimeter Working Scene Simulation System

The Radar Altimeter Echo Simulation System is designed to replicate the real-world operating scenarios of various radar altimeter systems. It generates and outputs radar altimeter echo excitation signals under complex working conditions, serving as a key tool for evaluating the comprehensive performance of radar altimeters.
This system is capable of simulating multiple critical signal scenarios, including radar altimeter echoes, surface target echoes, multi-path propagation of radar echoes during aircraft landing phases, radar altimeter echoes under different flight attitudes, forward and backward Doppler effects, and antenna direct wave signals. It is widely applied in testing the altitude-measuring performance of radar altimeters, as well as in verifying the functionality of altimeter control systems or integrated monitoring systems.
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Description

Product Composition

The whole simulation system is mainly composed of microwave down conversion link, frequency synthesizer, up conversion link, delay line unit, power dynamic adjustment unit, baseband DRFM, main control unit and calibration unit.

Radar Altimeter Working Scene Simulation System

 

Product Function

  • According to the information given by the simulation system, the echo signal of altimeter is generated in real time. The echo signal contains the core information of flight altitude, vertical velocity, echo attenuation and so on;
  • According to the flight attitude, antenna beam, beam direction, reflector scattering characteristics and other information, the plane target scene can be output in real time;
  • According to the characteristics of the aircraft loaded on the radar altimeter, the multiple travel signals of the radar echo are calculated in real time when approaching near zero altitude;
  • The performance of radar altimeter is evaluated based on the measurement results of radar altimeter;
  • The output signal power of dynamic continuous altitude, static altitude and Doppler effect can be simulated manually to meet various test functions.

Radar Altimeter Working Scene Simulation System

 

Technical Index

  • Applicable radar system: radio altimeter and radar altimeter;
  • Target echo type: point target echo and surface target echo;
  • Multiple travel echo in the site: not less than 5 trips;
  • Direct wave signal position: 0-10m;
  • Frequency of work center: 4.3GHz (customizable);
  • The range of simulated height: 0.5~30000m;
  • Simulation height resolution: 0.1m;
  • Simulation height accuracy: ±(0.2+0.002×H)m;
  • Doppler: 500k~500k;
  • Attitude: pitch and roll 45°.

Radar Altimeter Working Scene Simulation System

Radar Altimeter Working Scene Simulation System

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