摘要
为了提高三频航空电磁系统(FAEM)测量的自动化程度,设计实现了基于模糊控制和线性增量控制方法相结合的电磁补偿系统,来完成高精度、高稳定性、大动态范围的电磁补偿。以航空电磁接收机输出的电磁场实、虚分量值为控制的输入参量,以补偿线圈内的补偿电流为控制对象,80C52单片机为控制芯片,采用FFSI法推理程序实现补偿量的模糊控制,从而实现一次场和涡流场的实时程控补偿。航空电磁系统实验飞行数据表明,该控制系统可以快速实现一次磁场的实时高精度补偿,稳定性和补偿噪声水平能满足系统设计要求。
In order to improve the automation degree of the tri-band AEM system, the author designed an electromagnetic compensation unit based on the fuzzy control and linear incremental control approach so as to complete the high-precision, high stability, and large dynamic range Em compensation. With the real and imaginary components of the electromagnetic field output by the airborne electromagnetic receiver as the control input parameters, the compensation current in the compensation coil as the control object, the 80C52 monolithic processor as the control chip, the author adopted FFSI inference program to implement the fuzzy control of the compensation quantity, so as to realize the real time program control of the linear field and the voxtex field. The experimental data show that the control system can quickly achieve the real-time compensation with high stability and noise level.
出处
《物探与化探》
CAS
CSCD
北大核心
2009年第5期536-540,共5页
Geophysical and Geochemical Exploration
关键词
航空电磁系统
电磁补偿
模糊控制
单片机
FAEM electromagnetic system
compensation system
fuzzy control
MCU
