Modular Design for Condition Monitoring Circuit of Radar Transmitter BIT System

摘要

This text introduces a variety of causes which bring about the malfunction of transmitter and corresponding solving methods to these causes, analyzes the advantage and defect of every kind of monitor circuit of the transmitter. And then comes up with a kind of condition monitoring circuit based on PXI bus computer and CPLD chip whose logic function can be rebuilt. The main ingredients of the circuit protector are integrated into a few CPLD, and then designs several kinds of circuit protector in the condition of the circuit is not changed, using the characteristic of the CPLD(it can be repeatable programmed); at the same time the condition monitoring circuit uses the PXI bus computer to connect to radar, receiving the order of power on/off, reporting the present state of radar and the type of the malfunction.