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超短波及L波段航空信道通信模型，分为停放、滑行、起降及飞行场景，受载频、飞行速率、时延、数据率及波束到达角影响。(Aeronautical channel model of VHF and L band, which is classified into parking, taxi, take-off and arrival, and en-route scenarios, and is affedted by the carrier frequency, velocity, delay, data rate and arrival angle of the beams.)

it is a OFDM and QAM with dynamically X-QAM mdoulation scheme.

Hapke2002年模型仿真，以及模型参数的反演。(Hapke model implementation)

说明：  采用MATLAB编写的最新俄罗斯方块的游戏，大家闲暇时可以练练。进入游戏输入：MTETRIS，小键盘的4256作为左下上右控制键，CTRL+P暂停游戏，同时可通过菜单改变游戏难度(Prepared using the latest MATLAB Tetris game, we can spare time练练. Input into the game: MTETRIS, small keyboard on the 4256 as the left right control keys, CTRL+ P suspended game, at the same time through the menu to change the game difficulty)

64个子载波的OFDM系统在多径衰落信道中LS和MMSE信道估计误码率比较，MATLAB程序(64 sub-carrier OFDM system in multipath fading channel LS and MMSE channel estimation error rate more, the MATLAB program)

vt8500 update software tool user guide

说明：  用matlab进行通讯专业的相关基本技术 的仿真程序（一共三个，其中两个的源代码附在文档最后，每个仿真文档均有说明）(using Matlab for communications professionals the basic technology of the simulation program (a total of three, two of which are attached to the source code files Finally, the documentation of each simulation are described))

包含两个程序,以蛙跳积分法绘制henon-heiles演化方程的时间演化图,x-y,x-vx,y-vy相图和三维庞加莱截面图.( Contains two procedures to leapfrog integration time evolution plotted in Figure henon-heiles evolution equations, xy, x-vx, y-vy phase diagram and three Weipangjialai-sectional view.)

说明：  扩展卡尔曼滤波器程序，只需改相关参数即可(Extended Kalman filter process)

采用程序的方法介绍捷联惯性导航系统进行导航的方法，并将载体的导航信息输出以检验捷联惯性导航系统的导航效果。(Strapdown inertial navigation systems is a kind of common navigation systems in land vehicles.)