xitong

说明：  球面天文学（岁差、章动）和天体力学（行星星历表）的原始计算公式、算法和程序。matlab编译通过。主要包括：公历/儒略历转换为儒略日，儒略日转换为公历/儒略历，球坐标转换为直角坐标，直角坐标转换为球坐标等38个matlab源代码。压缩文件中有说明。(Spherical Astronomy (precession, nutation) and celestial mechanics (line stars ephemeris) of the original formula, algorithms and procedures. matlab compiler through. Mainly include: Gregorian/Julian calendar converted to Julian day, Julian date is converted to the Gregorian calendar/Julian calendar, the ball coordinates converted to rectangular coordinates, rectangular coordinates is converted to spherical coordinates, such as 38 matlab source code. Compressed file is described.)

matlab编写的复正弦信号频率估计程序，分别计算Tretter方法、kay、lovell&williamson等方法(matlab write complex sinusoidal signal frequency estimation procedures were calculated the Tretter method, kay lovell & williamson other methods)

in this theeses work we analysze the papr for better power performance in ofdm system ...............................with comparison to paper

在Matlab/Simulink构造一缓慢时变线性系统。试根据系统的输入生产数据分别用带遗忘因子最小二乘法和广义最小二乘法辨识系统的参数。(in Matlab/Simulink constructed a slow time-varying linear systems. Examination under the input production data were used to bring the forgotten factor method of least squares and generalized least squares method recognition system parameters.)

系统辨识的MATLAB程序，有增广最小二乘辨识，广义最小二乘辨识(MATLAB system identification procedures, extended least squares identification, generalized least squares identification)

最小选择恒虚警检测——SO-CFAR检测器：包括对于无目标、仅有噪声的信号进行SO-CFAR检测的仿真，以及对于含目标、且在瑞利杂波背景下的CA算法仿真。一些程序主要是为了绘图，画出SO-CFAR检测过程中的信号波形以及检测门限对比图；而另一些程序是为了计算SO-CFAR检测过程中的检测概率和虚警概率。(SO-CFAR detectors: simulations of detection to signals with no target but noise only, as well as signals with target and the background of Rayleigh clutter. Some programs are aimed at giving pictures of the signals and detectiong threshold in the process of detection using SO-CFAR algorithm, while other programs are aimed at calculating the detecting rate and false alarm rate of SO-CFAR algorithm.)

仿真高强度聚焦超声（HIFU）治疗生物组织温度场的二维分布情况(simulate the High intensity focused ultrasound (HIFU) in treatment of two-dimensional distribution of temperature field in biological tissue)

· 2PSK仿真系统编程。调制、信道、检测。 · 误码率仿真。 (2PSK 仿真)

局部频谱细化算法的实时效率 比较zoom-fft各种算法(Local spectrum thinning algorithm more efficient, real-time zoom-fft algorithms)

single-objective matlab code