Design of laser gyroscope SINS data acquisition based on FPGA

Navigation computer accepts the signals of gyroscope and accelerometer from IMU (Inertial Measurement Unit), achieves the design of data acquisition based on FPGA. Data acquisition circuit is a very important constituent of the laser gyroscope strapdown inertial navigation system, by analyzing the output of laser gyroscope and accelerometer further, completes the design of data acquisition circuit based on FPGA, uses the IP cores to realize the digital filtering module. The experiments show that this acquisition circuit counts numbers real-timely and exactly, the effect of filter is satisfied with the design requirements, taking FPGA simplifies the devices at a large extend so that it also improves its simplification for using and flexibility for collocation.