基于FFT的机载通信设备灵敏度测试方法

通信电台是重要的机载电子设备之一,对电台进行检测时,接收机灵敏度是反映接收机性能好坏的重要指标;利用传统的人工手动测试方法测量,其测试时间长、精度低、测量误差较大;在机载通信设备自动测试系统平台基础上,结合灵敏度指标的测试要求,给出了利用FFT进行快速测量的方法;实际工程应用结果表明,该方法相比传统的手工测试方法提高了测试效率和精度。

Sensitivity Test Method of Airborne Communication Equipment Based on FFT Sensitivity Test Method of Airborne Communication Equipment Based on FFT

Communication transmitter-receiver is one of the important airborne electronics equipments. The sensitivity of receiver is an important test content which reflects the performance of the receiver. It takes long time by traditional manual measurement, moreover, the precision is low and the error is big. A fast method of testing sensitivity is introduced by utilizing FFT on the basis of airborne communication equipment auto test system (ATS). An engineering application shows that the test efficiency and precision are improved compared with traditional manual measurement method.