随着科技的发展,现今我国市面上使用的雷达接收机主要有以下几种,直接下变频接收机、超外差式接收机、镜频抑制接收机、直接数字式接收机。通过对这些雷达接收机的实现途径、接收系统进行对比,发现超外差式接收机是现在企业主流使用的雷达接受机,但是相信,随着模数变换电路的性能不断提高,直接数字接收机技术必将会成为以后雷达接收机的主流趋势。 With the development of science and technology, there are several kinds of radar receivers currently used in the market in our country. Direct down conversion receivers, superheterodyne receivers, image rejection receivers and direct digital receivers. By comparing the realization and receiving systems of these radar receivers, we find that superheterodyne receivers are the most commonly used radar receivers in the enterprise. However, it is believed that with the continuous improvement of the performance of A / D converters, the direct digital receiver Technology will surely become the mainstream trend of radar receivers in the future.