At first, hardware circuit of the system has been designed, including minimum system of DSP, sampling pretreatment, dead zone formation, constant amplitude control and display circuit.

本文首先设计了系统的硬件电路，包括DSP的最小系统电路、采样预处理电路、输出信号死区形成电路、恒幅控制电路和显示电路。

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To design and manufacture a constant-source with adjustable amplitude value and the test system, and to realize the examination of zener diode voltage drift parameter, is very important.

设计制作出一个幅值可调的恒流源及其测试系统，实现稳压二极管电压漂移参数的检测，至关重要。

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The system of Electronic Scan Multibeam Constant Difference Amplitude Comparison(ESCDAC)direction measurement is widely applied in modern radar interception receivers.

电扫描多波束恒差比幅测向体制在现代雷达截获接收机中有着广泛应用。

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