光学成像遥感器调焦控制电路仿真测试

Testing and simulation of focusing circuit of optical remote sensor

提出了一种利用数据采集卡和计算机仿真技术检测和监控光学遥感器调焦控制电路的方法。通过对调焦控制电路的理论分析和实际测量,以数理逻辑、信息技术和系统技术为基础,构造了频率检测、电压检测、编码器反馈的仿真测试数学模型。应用计算机高速信息采集和智能控制技术,设计了调焦控制电路的仿真及测试系统,并进行了实验研究。实验结果表明,该系统能够准确测量工作频率在1.2 kHz以内,控制电压<40 V的调焦控制电路,完全满足对光学成像遥感器调焦控制电路的仿真及检测要求,并可长时间、方便、高效地监控调焦控制电路的工作运行情况。

A new method using the data sampling card and simulation technology was given to test the focusing circus of a optical remote sensor. By analyzing the theory of focuing circuit and measuring the circuit practically, the mathematic models were established for testing the focusing circuit and feeding back the value of the coder based on symbolic logic, information technology and system technology. Using the high-speed disposal and the intelligent control with PC, the testing system for focusing circuit was developed. The experimental results show that the system can exactly test the focusing circuit with work frequency less than 1.2 kHz and control voltage less than 40 V. It can satisfy the requirements for testing and simulation of focusing circuit of optical remote sensor, and the testing system can also automatically monitor the focusing circuit for a long period.