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MASS-15 Continuous Echo Simulation Excitation System of Radio Altimeter

The MASS-15 Continuous Echo Simulation Excitation System of Radio Altimeter is a specialized testing equipment designed to support the performance verification, calibration, and development of radio altimeters. It focuses on generating stable, continuous echo signals that accurately replicate real-world altitude-related signal environments—including varying echo amplitudes, frequency characteristics, and delay parameters corresponding to different flight altitudes and terrain conditions. By providing these realistic simulated excitation signals, the system enables radio altimeters to operate under controlled laboratory conditions, allowing engineers to test key functions such as height measurement accuracy, continuous tracking stability, and anti-interference capability. Its reliable continuous echo simulation function not only replaces the need for complex and costly field tests but also ensures consistent, repeatable test results, making it an essential tool for ensuring the reliability and performance of radio altimeters in practical aviation applications.

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Description

Product Description

  • Working center frequency: 4.3GHz;
  • Maximum allowable bandwidth: 200MHz;
  • Maximum allowable input power: 36dBm;
  • Height range: 0.4m ~ 8000m (continuous);
  • Height resolution: 0.5m;
  • Height accuracy: ± (0.2+0.005×h);
  • Correction accuracy after simulated altitude measurement: ± (0.2+0.001×h) m;
  • Height change speed: – 500~500m/S;
  • Height switching time: no more than 1ms;
  • In band fluctuation: no more than 3dB;
  • Maximum attenuation of circuit: not less than 150dB (high altitude);
  • Minimum attenuation of loop: no more than 40dB (low altitude);
  • Dynamic range of loop attenuation: not less than 80dB;
  • Spurious suppression: not less than 80dB;
  • Phase noise: no more than 80dbc/ Hz@1kHz;
  • Control mode: RS422 serial port control;
  • Working temperature: 0 ~ 40 ℃;
  • Working power supply: AC/50Hz/220V, or DC24-36V; power consumption not more than 60W;
  • Volume: Standard 4U chassis.

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