基于GNSS的飞行器姿态测量技术综述

Analysis and MATLAB Simulation of Single Carrier Frequency Domain Equalization System

GNSS系统的发展提高了导航测姿的可靠性和实时性。国内外学者对利用GNSS系统导航测姿算法问题进行了大量的的研究。本文通过对GNSS系统的姿态解算算法进行较为系统的的论述,内容涉及姿态解算原理、载波相位周跳探测、载波相位整周模糊度以及姿态解算算法等方面的研究。

Based on the six-pulse bivariate cross-converter based on, in order to avoid the motor in the soft startprocess from the variable frequency band （below 50 HZ） to the power frequency （50 HZ） voltage regulator section when the frequency difference caused by the larger The mechanical properties are softened, which improves the control performance of the motor starting to the common-band rotation speed, and suppresses the instantaneous inrush current caused when switching from 37.5 HZ to 50 HZ,so as to meet the requirements of the industrialcontrol on the speed regulation accuracy. Through the use of incremental PID control algorithm to control the time constant of pressure regulation, the pressure control time constant offset is used as a control quantity to form aclosed loop, and closed-loop adjustment is realized. A large number of simulation and experimental results show thatunder the effect of closed-loop regulation, the overshoot of the motor speed is small, and it can be operated with stability of almost no static difference at 1400 r/min, and the switching from the variable frequency band to the power frequency voltage regulation section is realized. Soft over.