无源侦察传感器宽带信道化接收技术研究

信道化接收机是无源侦察传感器系统的核心，研究了基于多相滤波结构的信道化接收机的数学模型，并由此模型设计了一个多信道模拟系统，利用现场可编程门阵列（ FPGA）对抽取、滤波、快速傅立叶变换（ FFT）等模块进行了设计，解决了信号高速实时处理与FPGA处理速度之间的矛盾。最后用仿真实验结果验证了模型和系统实现的正确性。

Research on wideband channelized receiving technology for passive reconnaissance sensor

Channelized receivers is the core of passive reconnaissance sensor system,a math model for channelized receiver based on polyphase filtering structure and a multichannel simulation system is designed based on this model,the extract,filtering and FFT modules are designed based on FPGA,the contradiction between signal high-speed real-time processing and FPGA processing speed is solved. At last,the simulation experimental results verify the model and system realization is correct.