▍1. DAC8568驱动例程
dac8568驱动程序编程,可以控制dac8568进行输出(Dac8568 driver programming)
dac8568驱动程序编程,可以控制dac8568进行输出(Dac8568 driver programming)
使用QT编写的一个串口升级工具,升级协议采用TI的LM3S系列的bootloader串口协议。(A serial upgrade tool, written using QT upgrade protocol using of TI' s LM3S series the bootloader serial port protocol.)
提供实现了(2,1,7)卷积码的维特比译码的源程序,采用了最大似然算法,介绍了软判决维特比译码算法过程的三个步骤:初始化、度量更新和回溯译码。(for achieving a (2,1,7) Convolutional Codes Viterbi decoding of the source, using the maximum- likelihood algorithm, introduced a soft-decision Viterbi decoding algorithm of the three steps : initialization, Metric update and backtracking decoding.)
说明: 8. 单径瑞利信道中的四发四收V-BLAST: (1) 请设计一种具体的导引辅助的信道估计方法,用Simulink进行仿真,测量16QAM调制时的误码率性能。画出比特信噪比与信道估计均方误差的关系曲线,画出比特信噪比与误码率的关系曲线。 (2) 计算所设计方案的频谱效率是多少,单位为bit/Hz/s。(8. Four transmit four receive v-blast in single-path Rayleigh channel: (1) please design a specific navigation-assisted channel estimation method and conduct simulation with Simulink to measure the bit error rate performance of 16QAM modulation.The relation curve between the bit signal-noise ratio and the mean square error of channel estimation is drawn, and the relation curve between the bit signal-noise ratio and the bit error rate is drawn. (2) calculate the spectral efficiency of the designed scheme in bit/Hz/s.)
给出了分数阶傅里叶变换的具体实现程序,阶数可调。该程序实现是根据一篇通信学报上的论文做的。同时提供了OFDM系统在不同信道估计技术下的误码率以及多径信道下的性能。对于想研究基于分数阶傅里叶变换的OFDM系统的人有一定帮助。(The codes for fractional fourier transform (frft) and its inverse way are given according to a published paper in Journal of Communication. The power is adjustable. In addition, two programms of OFDM system simulation under different channel estimate technique and multipath are offered. Therefore, such file packet is of use for those who have interests in studying OFDM based on frft)
DRM 外辐射源雷达的杂波抑制算法代码,LMS RLS ECA 有问题。(The code of clutter suppression algorithm for DRM external emitter radar has some problems with LMS RLS ECA.)
说明: DRM 外辐射源雷达的杂波抑制算法代码,LMS RLS ECA 有问题。(The code of clutter suppression algorithm for DRM external emitter radar has some problems with LMS RLS ECA.)
kd树,matlab源码 kd树,matlab源码(kdtree wiritten in matlab)
kd树,matlab源码 kd树,matlab源码(kdtree wiritten in matlab)
说明: 利用遗传算法优化SVM的两个参数,得到高精度的SVM模型用于识别分类(Optimization of SVM parameters by GA algorithm)
一个协作通信系统的仿真,包括AF,DF协作方式,接收端采用不同的合并方式(最大比合并,选择合并)进行合并.根据接收端不同的接收合并方式进行最优功率分配(A cooperative communication system with AF,DF )
半带滤波器,工作在采样率122.88Msps上(Half-band filter, working at the sampling rate of 122.88 Msps)
说明: 半带滤波器,工作在采样率122.88Msps上(Half-band filter, working at the sampling rate of 122.88 Msps)
这是整理的,在ASK通信中所需要的各种窗函数的部分源代码(This is the finishing, in the ASK communication needed in various parts of the source code window function)
在三条径的瑞利信道中,对于直接序列扩频: (1) 请设计DS-CDMA一种具体的码分导引辅助的信道估计方法,接收机分别采用等均益合并、最大比合并。用Simulink进行仿真,测量BPSK的误码率性能,画出比特信噪比与信道估计均方误差的关系曲线,画出比特信噪比与误码率的关系曲线,请解释在误码率为0.01时,两种合并方式所表现的不同的物理意义。 (2) 设频率已经同步,请设计DS-CDMA一种具体的单停顿滑动相关时间同步方法,用Simulink进行仿真(自己编写代码S-Function方式),分析所设计方案的时间同步精度,画出比特信噪比与捕获概率的关系曲线。 (3) 设时间已经同步,请设计DS-CDMA一种具体的频率方法,用Simulink进行仿真(自己编写代码S-Function方式),画出比特信噪比与频率同步误差的关系曲线。 (err)
使用 VC++ 调用微软蓝牙 API 函数的示例代码。可以使用 VC++6.0 至 VC++2010 编译代码。(Using VC++ call Microsoft Bluetooth API sample code. You can use VC++6.0 to VC++2010 compiled code.)
使用 VC++ 调用微软蓝牙 API 函数的示例代码。可以使用 VC++6.0 至 VC++2010 编译代码。(Using VC++ call Microsoft Bluetooth API sample code. You can use VC++6.0 to VC++2010 compiled code.)
三种随机构造法:Gallager_getH、Mackay_getH、PEG_getH(Three random construction methods: Gallager_getH, Mackay_getH, PEG_getH)