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六十年代以来,数字技术在雷达信号处理方面得到广泛应用。动目标显示系统的对消设备采用数字技术是很合适的,这是由于原先的超声波延迟线对消器加工困难、稳定性差、且难于调整,因而给制造和维护使用带来很多麻烦,在实际使用中往往达不到予定的性能指标。数字式对消器可以克服上述缺点,它稳定可靠,平时不需要调整,便于维护使用。此外,它还具有下面一些优点:①容易得到长的延迟时间,因而便于实现多脉冲对消,以得到
Since the 1960s, digital technology has been widely used in radar signal processing. Moving target display system cancellation equipment using digital technology is very appropriate, this is because the original ultrasonic delay line canceller processing difficulties, poor stability, and difficult to adjust, and thus to the manufacture and maintenance of the use of a lot of trouble in the actual In use often not up to the predetermined performance indicators. Digital canceller can overcome the above shortcomings, it is stable and reliable, usually do not need to adjust, easy to maintain. In addition, it has the following advantages: ① easy to get a long delay time, and thus facilitate the realization of multi-pulse cancellation to get