Radar Plane Position Indicator Fast Debugging Equipment Based on USB Data Acquisition Technique
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This paper introduces the design of a radar plane position indicator (PPI) fast debugging equipment based on USB. Hardware platform is a high-speed 16 channel date acquisition card -USB4716,which is based on USB. Its internal actual is 8 parallel 16AD module. The sampling length and sampling frequency can be set by software. PC interface compile by VC++2008, and finish data processing and waveform. Introduction: The radar PPI fast debugging equipment is a dedicated device for fast precise debug of the radar PPI by monitoring the output signals of the PPI display control circuit and comparing them with the standard signals. Traditionally, the radar PPI is debugged with the calibration system built of discrete instruments. This method is denounced for long debugging period, large space occupation, complex wiring, susceptibility to disturbance and difficult operation. The device proposed in this paper adopts the USB data acquisition technique and has the merits of fast debugging speed, high calibrating precision, small space occupation, robustness to disturbances, easy operation and high extensibility.
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