宽带数字接收机测频方法的研究

Study on the Methods of Frequency Measurement for Broadband Digital Receiver

在宽带数字式信道化接收机中,对信道化后信号处理的方法通常有在数字式信道化处理后的每个信道后接相位比较器、单比特接收机、另一组FFT。文章对相位法测频进行了matlab仿真,提出了一种解模糊算法,仿真结果表明这种解模糊算法可以得到很好的结果。最后,对此测频方法存在的问题做了分析,并指出了要完善这种测频方法还需要做的下步工作。

Generally speaking, there are three methods of signal processing after been channeled in the broadband digital channeled receiver. Through emulating one of these methods by matlab, paper brings forward a way of ambiguity resolution which can achieve better results. At last, existent imperfect of this method about measuring frequency are analyzed and the next task is pointed out which can perfect this method.