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TicketHelper
12306 旧版本抢票软件,抢票软件源码(ticket )
- 2014-01-10 10:26:40下载
- 积分：1
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123
针对MIMO-OFDM系统中期望最大化(EM)信道估计算法在高信噪比(SNR)下带来的误差地板(EF)现象,且OFDM符号的数据传输效率随发射天线数的增加而明显降低,提出一种改进的高效EM信道估计算法。该算法首先引入一种准确的等效信号模型并推导出一种修正的EM算法,改善了EM算法在高SNR下的性能 在多个OFDM间利用相位正交导频序列来提高数据传输效率,同时进行联合信道估计以提高估计性能。仿真实验验证了所提算法具有更高的信道估计性能和更高的数据传输效率。(For multiple-input multiple-output with orthogonal frequency division multiplexing(MIMO-OFDM) systems,the error floor(EF) phenomenon at high signal noise rate(SNR) was induced by the expectation maximum(EM) channel estimation algorithm.In addition,the data transmission efficiency was declined obviously with the increasing number of transmit antennas.According to these problems,an improved and efficient EM channel estimation algorithm was pro-posed.Firstly,an accurate and equivalent signal model was introduc...)
- 2011-09-05 15:20:54下载
- 积分：1
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BandM
处理MODIS的BRDF文件 ASCII格式(Processing of MODIS BRDF ASCII file format)
- 2017-01-07 20:34:29下载
- 积分：1
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PRTX即时通信开发平台，实现了基本的功能，简单实用。
PRTX即时通信开发平台，实现了基本的功能，简单实用。-PRTX instant communications development platform, to achieve the basic functions, simple and practical.
- 2022-02-03 07:53:09下载
- 积分：1
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arts_debug
调试对于软件的成败至关重要，正确使用恰当的调试工具可以提高发现和改正错误的效率。本书详细介绍了 3种调试器，gdb用于逐行跟踪程序、设置断点、检查变量以及查看特定时间程序的执行情况， ddd是流行的 gdb的 gui前端，而 eclipse提供完整的集成开发环境。书中不但配合实例讨论了如何管理内存、理解转储内存、跟踪程序找出错误等内容，更涵盖了其他同类书忽略的主题，例如线程、客户 /服务器、gui和并行程序，以及如何躲开常见的调试陷阱。(Debugging for is vital to the success of the software, the proper use of appropriate debugging tool can improve the efficiency of discovery and correct mistakes. Book introduces in detail three kinds of debugger, GDB for tracking procedures, set breakpoints, line by line check variables and checking their specific time execution of DDD is popular the GDB GUI front-end, and eclipse provides a complete integrated development environment. The book not only cooperate with examples to discuss how to manage the memory, understanding, memory dump and trace program error, more covers other similar books ignore themes, such as threads, client/server, GUI, and the parallel program, debugging and how to avoid common pitfalls.)
- 2013-08-03 14:53:53下载
- 积分：1
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LL1
LL1 文法分析的实现..很完全的代码.需要的同志可以下载哈(LL1 grammar analysis to achieve a very complete code ... The need for comrades can download Kazakhstan)
- 2007-11-14 20:14:05下载
- 积分：1
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read
用matlab画滞回曲线，每圈都能用不同颜色分开(Draw hysteretic curve, each circle can be separated by different colors)
- 2018-12-19 16:39:53下载
- 积分：1
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使用CAsyncSocket类，代理服务器
采用CAsyncsocket类连接代理服务器-used CAsyncsocket category, Proxy Server
- 2022-05-07 04:34:41下载
- 积分：1
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一种QPSK全数字化载波频偏估计算法
信号利用QPSK调制，采用全数字化的频偏估计方法(A full digital frequency offset estimation method using QPSK modulation)
- 2020-12-29 11:29:01下载
- 积分：1
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一阶倒立摆
说明： 一阶倒立摆的LQR PID两种方法的比较，PID的simulink仿真，LQR的代码和simulink仿真，内含报告，供初学者参考(Comparison of two methods of first-order inverted pendulum LQR PID, simulink simulation of PID, LQR code and simulink simulation, including report for beginners reference)
- 2020-06-05 09:35:53下载
- 积分：1
