720MHz中频均衡器作为高速率遥感数据地面接收系统中的重要组成部分,可以在频域对系统的幅频特性进行补偿,提高系统接收性能。文中介绍了一种基于长线理论的幅度均衡器,对其工作原理和实现方法进行了分析。实际测试结果同仿真结果相吻合,可以对遥感数据地面接收系统高速率中频输出信号的幅度平坦度进行有效调整,并取得了良好的效果。

The 720 MHz IF equalizer is an important part in high speed data remote sensing satellite earth station. It can compensate amplitude frequency characteristic of system in frequency domain and improve receiving performance of system. In this paper, an amplitude equalizer based on long terminated lines theory is discussed, and its working principle and realization method are analysed. The product has been employed in a practical project. The result of actual measurement accords with simulated and satisfactory effect has been obtained basing on mplitude flatness of high speed data IF output signal can be effecitvely adjust by it. [

TN943.3 TN828.5