基于V/F变换的高精度寻北仪信号处理系统设计  

Design of Signal Processing System of Precise North-seeker Based on V/F Conversion

作　　者：李宝林[1] 卜继军[1] 

机构地区：[1]四川压电与声光技术研究所,重庆400060

出　　处：《压电与声光》2008年第2期141-143,共3页Piezoelectrics & Acoustooptics

摘　　要：为提高寻北仪精度,设计了基于V/F变换的数据采集及信号处理系统。陀螺输出的微弱信号通过解调放大电路、专门的V/F变换电路和基于FPGA的信号处理电路,配以软件滤波算法,最终得到较精确的数据采集和处理结果。试验结果表明,该方法能有效去除陀螺输出信号中的噪声,采集的数据用于寻北仪解算能够得到精度较高的寻北结果。In order to improve the precision of north-seeker, the signal collection and processing system based on V/F conversion is designed. The signal coming from gyro is demodulated, amplified and processed by the circuit based on V/F conversion and FPGA. Tthen the signal out of the system would be digital filtered for the precise result. The outcome of experiment shows that this method is valid for removing the noise in the signal, with which the precise north seeking result can be achieved.

关 键 词：V/F变换 信号处理 寻北仪 精度 

分 类 号：V241[航空宇航科学与技术—飞行器设计]