磁控管体制雷达的数字稳相方法设计

磁控管体制雷达具有功率大、效率高、工作电压低、简单轻便、造价低廉的优点,但其主要缺点是工作频率和相位不稳定,以致无法精确测量目标物的速度,所以对磁控管体制的雷达进行数字稳相是相当有必要的.介绍了两种稳相方法,即数字卷积法和数字补相法,并采用MATLAB对两种稳相方法的结果进行模拟.经过两种方法的处理后输出的信号的虚部和实部都一样,说明都得到了较好的稳相效果,可以获得较高的改善因子,提高磁控管体制雷达的动目标检测能力.其中,数字补相法显示了更高的运行效率和稳定性.

Digital stationary phase methods design of the magnetron radar system

Magnetron radar system has many advantages,such as large power,high efficiency,low operating voltage,simple and light,low cost and so on.But the main disadvantage is the unstable frequency and phase,which make it can not measure the velocity of a target accurately.Therefore,the digital stationary phase methods design of the magnetron radar system is quite necessary.Two methods of stationary phase are introduced in this paper.One is digital convolution,and another is digital filling phase.And the paper simulated the result of the two methods using MATLAB.The imaginary part and real part of the output signal are the same through the two methods,which indicating a good digital stable phase result.The magnetron radar system can get a higher improvement factor and the capability of moving target detection.And the digital filling phase method shows higher efficiency and stability.