chap3

design and source code for simulating PLL components with matlab

说明：  统计学的一些简单的小程序,希望大家可以帮忙改以下(statistically small number of simple procedures in the hope that we can help with the following)

伪随机码或称PN码，是扩频通信中不可缺少的一种序列。扩频通信，简单的说来就是通过一组相关性很强的伪随机序列，使原有的信号按照伪随机序列的特性出现。(Said pseudo-random code or PN code, spread spectrum communication is an indispensable sequence. Spectrum, simple to say is highly relevant by a group of pseudo-random sequence, so that the original signal in accordance with the characteristics of pseudo-random sequence appears.)

simulating random integer numbers

标准大气模块，MATLAB/GUI，标准大气温度、压力、密度，用于飞行控制。(atmosphere module in MATLAB)

matla编程指南，常见错误，适用于matlab初学者和中级学者(Matla Programming Guide, Common mistakes)

应用于模式识别的感知机算法的MATLAB代码实现(The perceptron algorithm is the classic method of Pattern recognition)

对各个特征量的大小进行排序，并显示相应的序号(The size of each characteristic quantity to sort and display the corresponding number)

工程中有效测量幅相转换系数方法分析,非常好，公式齐全，推理明确(Effective measurement of phase conversion coefficient method in Effective measurement of phase conversion coefficient method in engineering analysis engineering analysis, is very good, complete formula, reasoning clear )

说明：  把激光陀螺捷联惯导系统和GNSS接收机固联于实验车实验仓中，接收机天线固联在实验车实验仓上方，车载计算机实时接收和采集惯导系统、卫星导航接收机的原始数据，在郊外开阔公路进行车载实验。 通过matlab编程实现卫星导航伪距单点定位、INS/GPS松组合导航的全过程。 1）卫星导航单点定位测速：利用采集得到的接收机时间、伪距、多普勒频移数据，要求进行单点定位、测速解算，输出接收机的位置、速度随时间的变化曲线，并给出位置、速度误差曲线； 2）松组合导航：结合惯导解算和卫星接收机单点定位测速，要求采用Kalman滤波器实现惯导/卫星位置、速度组合导航解算，滤波器维数至少包括惯导的位置、速度、姿态角9维。将组合导航后的姿态角与纯惯导的姿态角进行对比分析，给出位置、速度误差曲线。(The laser gyro strapdown inertial navigation system and GNSS receiver are fixed in the experimental compartment of the experimental vehicle. The antenna of the receiver is fixed above the experimental compartment of the experimental vehicle. The on-board computer receives and collects the original data of the inertial navigation system and satellite navigation receiver in real time, and carries out on-board experiments on the suburban open highway.)