CQT_toolbox_2013

立体车库是当今世界主流选择，具有占地面积小，无人管理的特点。本程序包括按键程序、主程序、显示程序。(Three dimensional garage is the mainstream choice in the world today. It has the characteristics of small footprint and no management. This program includes key program, main program and display program.)

采用可变模式分解对一维时间信号进行分解，其性能优于传统EMD，LMD等方法(signal processing method)

各种时间之间的转换，包括： 将GPS周和周内秒转换到公历时间， 由公历日期和GPS周内秒计算公历时间， 将公历GPS时间转换到GPS周和周内秒， 将简化儒略日转换到公历时间， 将公历时间转换到简化儒略日， 从儒略日计算公历时间， 将公历时间转换到儒略日等。(The conversion between various times, including: Conversion of GPS weeks and weeks to the calendar time, The calendar time is calculated from the date of the calendar and the seconds within GPS weeks. The GPS time of the calendar is converted to GPS weeks and within seconds, Julian day will simplify the conversion to the calendar time, The Gregorian calendar time to simplify the Julian day, Calculate the Gregorian calendar time from Julian day, Convert calendar time to Julian day.)

说明：  采用激波膨胀波法计算翼形压力分布和气动系数(Calculation of wing pressure distribution and aerodynamic coefficient by shock expansion wave method)

基于自适应滤波算法的通信系统中微弱信号检测程序(Weak Signal Detection Program in Communication System Based on Adaptive Filtering Algorithms)

二维喷管的设计，内含四个m文件。好不容易找到的。(Design of two-dimensional nozzle)

1、目标速度引起的失真，时间膨胀因子10%、chirp中心频率偏移5%。 2、超高速运动对脉冲压缩的影响，多普勒频移补偿(Distortion caused by target speed, time dilation factor 10%, and chirp center frequency offset 5%. Effects of ultra high speed motion on pulse compression and Doppler frequency shift compensation)

通过频率计数器采集到的数据可以实时计算Allan方差(The Allan variance can be calculated in real time by the data collected by the frequency counter)

说明：  实现角度向弧度的转换，并判断所属象限。。。(Realize the conversion of angle to radian, and judge the quadrant.)

二维FDTD程序，以方柱为例仿真其散射的波形(Two-dimensional FDTD procedures for square cylinder as an example simulation of the scattering wave)