Title :
Application of TD filter in DTG north seeking system
Author :
Jiang, Wei ; Yi, Guoxing ; Zeng, Qingshuang ; Zhang, Lixian
Author_Institution :
Space Control & Inertial Technol. Res. Center, Harbin Inst. of Technol.
Abstract :
In this paper, the applicability and advantage of tracking differentiator (TD) filter in dynamically tuned gyro (DTG) north seeking system is presented. According to the working principle of north seeking system, the system structure is first designed based on DSP. Then TD filter with discrete form, which is easily realized in DSP, is adopted to eliminate both the noise and disturbance in the output signal of gyro. Practical measurement data are given to show that the north-seeking accuracy is improved effectively, and the seeking time is shortened by TD filter
Keywords :
gyroscopes; signal processing; tracking filters; DSP; DTG north seeking system; TD filter; dynamically tuned gyro north seeking system; gyro output signal; north-seeking accuracy; tracking differentiator filter; Continuous wavelet transforms; Digital signal processing; Discrete wavelet transforms; Earth; Information filtering; Information filters; Kalman filters; Signal processing; Space technology; Wavelet analysis;
Conference_Titel :
Systems and Control in Aerospace and Astronautics, 2006. ISSCAA 2006. 1st International Symposium on
Conference_Location :
Harbin
Print_ISBN :
0-7803-9395-3
DOI :
10.1109/ISSCAA.2006.1627447
