对基于多相滤波技术的信道化算法做了仿真和优缺点分析。针对其存在盲区的问题，以降低抽取率为基础，对该算法进行了改进，建立了无盲区信道化接收机模型。并由此模型设计了四信道仿真系统，实验结果验证了模型的正确性。最后，在Tiger SHARCTS101上实现了改进算法．运行结果证明了算法的高效性。

In this paper, the channelized algorithm based on polyphase filtering is simulated and the advantages and disadvantages are analyzed. First, aiming at the problem of blind-zone and basing on reducing the multiple of decimation, the algorithm is improved. After that a mathematical model of no-blind-zone channelized receivers is derived. Then, a simulation system of realizing four channel receiver from the model, is designed. All experimental results show our model is correct. At last, the improved algorithm is realized in TigerSHARCTS101. The running results confirm its feasibility and availability.

TN957.5