-
tcpserver
说明： 运行在QT 上，而且基于TCP协议上的，连接服务器的服务端口(TCP-based server service ports on QT)
- 2020-06-22 23:40:01下载
- 积分：1
-
wf1
说明： OFDM的matlab注水算法编程算法。经典注水算法。用于频率资源分配。(OFDM's Matlab water injection algorithm programming algorithm. Classic water injection algorithm. It is used for the allocation of frequency resources.)
- 2018-05-16 15:15:39下载
- 积分：1
-
fast-subspace-algorithm
为了对空间辐射源进行精确定位" 建立了基于任意阵列对多目标源进行二维DOA估计的数学模型。将 MUSIC算法推广到三维空间阵列可以对辐射源进行二维高精度测向,但由于其需要估计接收数据的协方差矩阵和进行特征分解, 因而其计算量较大。利用多级维纳滤波器的前向递推获得信号子空间和噪声子空间，不需要估计协方差矩阵和对其进行特征分解，从而降低了MUSIC算法的计算量。将文中的方法应用于任意阵列的二维DOA估计中进行计算机仿真和实际侧向系统性能验证,实验结果均表明该方法达到了MUSIC算法的性能,但与常规MUSIC算法相比降低了计算量.( In order to space radiation source for precise positioning" based on arbitrary array to multiple target source 2D DOA estimation model. The MUSIC algorithm is extended to three-dimensional space to two-dimensional array of radiation source for high precision direction finding, but due to the need to estimate the covariance matrix and eigenvalue decomposition, and the large amount of calculation. Use of multistage Wiener filter forward recursion received signal and noise subspace, does not need to estimate the covariance matrix and the eigenvalue decomposition, which reduces the computation of MUSIC algorithm. This method is applied to an arbitrary array DOA estimation for computer simulation and actual lateral system performance verification, the experimental results show that this method achieves the performance of MUSIC algorithm, but with the conventional MUSIC algorithm reduces the calculation amount.)
- 2012-03-09 16:03:44下载
- 积分：1
-
ARMprogramdesign
基于ARM的嵌入式程序设计.rar,对arm的学习会有很大的帮助。(ARM-based embedded programming. Rar, on the arm of the study will be of great help.)
- 2008-04-15 17:41:55下载
- 积分：1
-
Performance_Comparisons_between_FLL_PLL_and_DLL
FLL、PLL、DLL的设计与比较,在扩频通信系统中这三种环路就是关键。(FLL, PLL, DLL design and comparison, in the spread spectrum communication system in these three loops is the key.)
- 2009-10-10 21:20:13下载
- 积分：1
-
在VC++6.0中用MSComm控件编程，可以实现串口接
在VC++6.0中用MSComm控件编程，可以实现串口接(used in VC 6.0 MSComm programming, serial port access can be achieved)
- 2005-01-04 04:01:12下载
- 积分：1
-
45d2352abc27
实现sc-fde的信道估计和频域均衡，通信专业必备，MATLAB软件(Implementation of channel estimation and frequency domain equalization SC-FDE)
- 2018-04-18 14:54:05下载
- 积分：1
-
Gold
wcdma中的下行扰码，18级移位寄存器产生GOLD码，复扰码(wcdma a downlink scrambling code, 18 shift register GOLD code, complex scrambling code)
- 2015-08-05 21:01:03下载
- 积分：1
-
SIM300DATA
SIM300的封装，对于要用GSM搞硬件开发的人很(SIM300 package, for use GSM person engaged in the hardware development is)
- 2009-02-21 17:39:52下载
- 积分：1
-
on-the-modulation-technology-in-OFDM
在 OFDM 数学原理和收发模型的基础上，本文对帧同步、定时同步、频率同
步和采样同步给 OFDM 系统所产生的影响进行了理论分析，同时讨论了基于循环
前缀或训练符号的典型 OFDM 同步算法。参考 802.11a 突发数据帧结构和系统参
数，分析几种 OFDM 同步算法用于突发分组传输的性能；在分析了几种经典的信
道估计算法基础上,通过对复杂度和性能的折衷，选择一种适合本文系统的估计
算法。最后作者提出一种改进型 LS 信道估计算法，该算法考虑了 LS 算法中噪声
的影响，从而提高了低信噪比下信道估计的精度。仿真结果表明，改进算法在低
信噪比下具有良好的性能。
(OFDM mathematical principles and transceiver model based on frame synchronization, timing synchronization, frequency synchronization and sampling synchronization to the OFDM system, the impact of the theoretical analysis are also discussed based on the cyclic prefix or training symbols typical OFDM synchronization algorithm . Reference 802.11a burst data frame structure and system parameters, analyze several OFDM synchronization algorithm for burst packet transmission performance several classic channel estimation algorithm based on a compromise between complexity and performance, select a suitable estimation algorithm in this article. Finally, the author proposed a modified LS channel estimation algorithm that takes into account the effects of noise in the LS algorithm, thus improving the low SNR channel estimation accuracy. Simulation results show that the improved algorithm has good performance in low signal-to-noise ratio.)
- 2013-05-10 15:18:30下载
- 积分：1
