在电子侦察中由于没有先验知识,需要对其参数进行估计,而其中基带信号带宽也是重要参数之一。文章旨在通过利用FPGA的数字信号高速处理能力,验证其在盲估计信号参数方面的可行性。选取了典型的估计BPSK信号带宽作为例子。通过利用FPGA实现一种简单的算法最终较快速的估计出了BPSK信号的带宽。 Since there is no prior knowledge in electronic reconnaissance, its parameters need to be estimated, and the bandwidth of the baseband signal is also one of the important parameters. The article aims to verify the feasibility of blindly estimating signal parameters by utilizing the high-speed processing capabilities of digital signals in FPGAs. A typical estimate of BPSK signal bandwidth is taken as an example. By using FPGA to implement a simple algorithm, the bandwidth of BPSK signal is estimated more quickly.