lclnibianbihuan

对载波相位平滑伪距的原理和数据预处理进行了探讨,给出提高其定位精度的处理方法和流程。通过 两个算例得到如下结论:对C1和P2码进行相位平滑可有效提高伪距定位精度,较长时间观测定位精度可达1 m 左右,利用精密星历改进后,平滑伪距的定位精度可达0. 5 m左右 对P1和P2码进行相位平滑对定位精度提高不 大,较长时间观测平滑前后的定位精度均可达到0. 6 m,利用精密星历改进后,精度可达0. 3 m 在动态测量后处理 中,绝大部分历元利用精密星历结合相位平滑的定位精度可达2 m。 (The principle and data preprocessing ofcarrier smoothed pseudorange are discussed and themethod which can improve the positioning accuracy and its flow are given.W ith thismethod two computation examples are made.The results show tha:t 1)the accuracy can be improved efficiently by using smoothed C1and P2pseudorange in static data processing, the accuracy can reach 1m if the time is long and can attain 0. 5m if the precise ephem- eris is taken 2)the accuracy can be boosthardly by using smoothed P1and P2pseudorange, but the accuracy can be improved from 0. 6m to 0. 3m if the time is long enough and the precise ephemeris isused 3)mostepochs can reach to the accuracy of2 m precision in kinematic positions if the smoothed code and precise ephemeris are uti- lized. )

基于快速傅立叶变换的音频处理程序算法，包括stm自带dsp库的使用(Audio processing algorithm based on fast Fu Liye transform, including the use of DSP library with STM)

说明：  直流无刷电机转速电流双闭环仿真模型，测试可以很好的运行(DSP28335 MATLAB SIMULINK)

高速数字设计手册，介绍高速数字信号原理，电路板设计(high speed digital design handbook,high speed digital design handbook)

实现时滞系统稳定性分析的lMI工具箱，安装在matlab中使用，可以求解(Stability analysis of time-delay systems)

在TMS320F2812上做的32点傅立叶算法（定点运算）。(TMS320F2812 make up at the 32-point Fourier algorithm (fixed-point computation).)

说明：  读取ecg心电信号和低通滤波器预处理，频谱分析(Read ECG signal and low-pass preprocessing)

16QAM信号 64QAM信号的产生和分析，星座图，频谱，功率谱(6QAM signal 64QAM signal generation and analysis, constellation, spectrum, power spectrum)

说明：  实现GPS伪距单点定位，包括星历解码、载波相位、伪距数据的计算。(Realization of GPS Pseudo Range Single Point Positioning)

加拿大卡尔加里大学的INS/GPS组合导航设计讲义，设计思路很清晰，适合初学者。(The University of Calgary, Canada INS/GPS integrated navigation design notes, design ideas very clear, suitable for beginners.)