newton-tonglun

Channel estimation techniques for OFDM systems based on a pilot arrangement are investigated. Channel estimation based on a comb type pilot arrangement is studied through different algorithms for both estimating the channel at pilot frequencies and interpolating the channel. Channel estimation at pilot frequencies is based on LS and LMS methods while channel interpolation is done using linear interpolation, second order interpolation, low-pass interpolation, spline cubic interpolation, and time domain interpolation. Time-domain interpolation is obtained by passing to the time domain by means of IDFT (inverse discrete Fourier transform), zero padding and going back to the frequency domain by DFT (discrete Fourier transform). In addition, channel estimation based on a block type pilot arrangement is performed by sending pilots in every sub-channel and using this estimation for a

磁共振成像仪的基本硬件,脉冲序列的基本概念和分类,MRI常规质控指标,MRI的优缺点(Magnetic resonance imaging of the basic hardware, pulse sequence and classification of the basic concepts, MRI routine quality control indicators, MRI of the advantages and disadvantages)

组合导航及滤波算法，组合导航及滤波算法组合导航及滤波算法(Navigation and filtering algorithms, integrated navigation and filtering algorithm and filter algorithm Navigation)

Poetry appreciation system(Be able to specify the folder poetry files (text files, not less than 10) in the order of eleven appreciate, the last one poem to the next song is the first poem, the first verse is the last one before a poem. User interface menu (or Command button) should at least include locate the folder, on a poem, The next poem, Exit 4. Tip: You can use DriveListBox, DirListBox and FileListBox controls.)

信号在高斯信道下的仿真，本人自己编的，已经经过验证是正确的(The simulation signal under the Gauss channel, I own, has been verified to be correct)

无迹卡尔曼滤波算法在Matlab环境下的实现。设置了两种仿真环境进行试验验证，给出了Matlab源程序代码与注释。(Unscented Kalman filter algorithm in Matlab environment. Set two environment simulation test verification, given Matlab source code and comments.)

神经网络源代码，一个字符识别程序，分别实现了没有噪声和带有噪声的测试(Neural network source code, a character recognition program, were achieved with no noise and noise tests)

scalar costa watermarking

optical CHARACTER RECOGNITION with important diagrams.

导航系统设计数学基础应用代码（matlab),包括各章节的代码。(Applied mathematics in integrated navigation systems)