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Description: 程序的主要功能是做了一定范围的信噪比下，对每个信噪比：随机信号QPSK调制；
根据Alamouti方案的矩阵进行编码；发送信号经过瑞利信道和加入高斯白噪声；
接收信号采用最大比合并的方法；最后对合并信号进行最大似然判决并求误符号率。
结果表明10^-3对应大约12->13dB-Procedure main function is to do a certain range of SNR for each signal to noise ratio: random signal QPSK modulation program in accordance with Alamouti coding matrix send signals through Rayleigh channel and adding Gaussian white noise received signal using maximal-ratio combining method Finally the combined signal and the maximum likelihood decision for symbol error rate. The results showed that about 10 ^-3 corresponds to 12-> 13dB
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Description: 利用PCA和模糊C均值相结合的方法实现图象的聚类-Using PCA and fuzzy C-means method of combining images to achieve the clustering
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Size: 1024 |
Author: 王英 |
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Description: 最大比合并与等增益合并、选择合并的性能对比-Maximal-ratio combining with the merger, such as gain, select the combined performance comparison
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Author: 陈功 |
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Description: 在No Diversity (1Tx, 1Rx)、Alamouti (2Tx, 1Rx)、与Maximal-Ratio Combining (1Tx, 2Rx)三种不同情形下的mimo仿真程序及误码率比较情况-In No Diversity (1Tx, 1Rx), Alamouti (2Tx, 1Rx), and Maximal-Ratio Combining (1Tx, 2Rx) three different cases of MIMO simulation program and the error rate comparisons
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Author: chien-lun chen |
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Description: 为减少测试数据存储量,提出一种有效的新型测试数据压缩编码———PTIDR 编码,并构建了基于该编码的
压缩P解压缩方案1 PTIDR 编码能够取得比FDR ,EFDR , Alternating FDR 等编码更高的压缩率,其解码器也较简单、
易实现,且能有效地降低硬件开销1 与Selective Huffman , CDCR 编码相比,PTIDR 编码能够得到较高的压缩率面积
开销比1 特别地,在差分测试集中0 的概率满足p ≥017610 时,PTIDR 编码能取得比FDR 编码更高的压缩率,从而
降低芯片测试成本1- We present a new test data compression and decompression architecture based on a novel and
efficient code , named PTIDR code1 The proposed approach can acquire better compression efficiency than
that of FDR (f requency2directed run2length) , EFDR (extended FDR) , alternating FDR etc1 The decoder
of PTIDR is also simpler , easier to realize and needs less hardware consumption1 Compared with algorithms
such as selective Huffman and CDCR (combining dictionary coding and L FSR reseeding) , PTIDR can ac2
quire higher CRPAR (ratio of compression ratio and area ratio) 1 Especially , when the probability of 0s in the
difference test set is greater than or equal to 017610 , it can acquire better compression efficiency than FDR
code , and thus , reducing the test cost of the chip1
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Author: 周晨 |
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Description: calculate the throughput and the number of transmissions of signal using the method of code combining.HARQ protocol
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Author: mayaas |
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Description: maximum ratio combining
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Author: bill |
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Description: MIMO MRC system - maximum ratio combining-MIMO MRC system- maximum ratio combining
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Author: Expert |
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Description: 研究相关瑞利衰落信道上MIMO系统中组合发射机选择合并(SC)／4t-收机最大比合并(MRC)的天线分集系统性能。使用矩生成函数方法，推导相关瑞利衰落信道上采用组合SC／MRC天线分集和相干检测的M 进制相移键控(MPSK)，M进制正交幅度调制(MQAM)，M 进制脉冲幅度调制(MPAM)等几种M 进制数字调制方式的误符号率精确表达式。数值计算结果阐明相关性和天线阵结构对采用组合SC／MRC天线分集的几种M 进制数字调制方式的平均误符号率性能的影响。-Research related to Rayleigh fading MIMO channel transmitter system to choose the combined portfolio (SC)/4t-collection machine maximal-ratio combining (MRC) diversity antenna system performance. The use of moment generating function method, Rayleigh fading channel is derived using the relevant combination of SC/MRC antenna diversity and coherent detection of M-ary phase shift keying (MPSK), M M-ary quadrature amplitude modulation (MQAM), M-band pulse amplitude modulation (MPAM), such as several M-band digital modulation modes of expression of symbol error rate of accuracy. The numerical results clarify the relevance and structure of antenna arrays using combinations of SC/MRC antenna diversity of several M-band digital modulation of the average symbol error rate performance.
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Author: dingyuwen |
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Description: 包括两个文件,一个是2*2系统采用最大似然检测的BER仿真,一个是接收端使用MRC的仿真-computing the BER in a Rayleigh fading channel with Maximal Ratio Combining
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Size: 2048 |
Author: 张群 |
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Description: Script for computing the BER for BPSK modulation in a
Rayleigh fading channel with equal gain combining
-Script for computing the BER for BPSK modulation in a
Rayleigh fading channel with equal gain combining
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Author: mohanad1 |
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Description: 通过MATLAB软件；通过仿真得出性能曲线；从而比较bpsk的性能-The bit-error rate (BER) of binary phase-shift keying
in Rayleigh fading, using the Alamouti transmission scheme and
receiver selection diversity in the presence of channel-estimation
error, is studied. Closed-form expressions for the BER of log-likelihood
ratio selection, signal-to-noise ratio (SNR) selection, switchand-
stay combining selection, and maximum ratio combining are
derived in terms of the SNR and the cross-correlation coefficient
of the channel gain and its corrupted estimate. Two new selection
schemes, space–time sum-of-squares combining selection diversity
and space–time sum-of-magnitudes selection diversity, are
proposed and proven to provide almost the same performance as
SNR selection, but with much simpler implementations. The effects
of channel-
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Author: 刘小洋 |
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Description: 对多输入多输出信道的接受方式进行仿真，得到最大比合并法的性能。-For multiple-input multiple-output channel into the way the acceptance of simulation, get the maximum ratio combining method performance.
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Author: 李志 |
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Description: Space coding with equal gain combining.
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Author: Lulala |
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Description: Covering pattern classification methods, Combining Classifiers: Ideas and Methods focuses on the important and widely studied issue of how to combine several classifiers together in order to achieve improved recognition performance. It is one of the first books to provide unified, coherent, and expansive coverage of the topic and as such will be welcomed by those involved in the area. With case studies that bring the text alive and demonstrate real-world applications it is destined to become essential reading.-Covering pattern classification methods, Combining Classifiers: Ideas and Methods focuses on the important and widely studied issue of how to combine several classifiers together in order to achieve improved recognition performance. It is one of the first books to provide unified, coherent, and expansive coverage of the topic and as such will be welcomed by those involved in the area. With case studies that bring the text alive and demonstrate real-world applications it is destined to become essential reading.
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Author: patapee |
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Description: 有关最大比合并、等增益合并的增益性能及误码率的描述。-The maximal-ratio combining, equal gain combined gain of performance and bit error rate description.
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Author: nannan |
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Description: This thesis presents simulation data on array operation in wideband communication systems.
It is shown that array structures with closer inter-element spacing outperform structures with
much larger inter-element spacing. It is also shown that circular structures outperform linear
structures. This performance di erence between the classi cations of arrays is due largely
to the circular array s ability to handle high levels of interference. Even though a diversity
combining scheme (MRC) was used in the simulator, the arrays provided interference rejection
capabilities due to the closely spaced antenna elements.
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Author: mansoor |
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Description: diversity combining(SC.MRC.EGC.DC)-diversity combining
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Author: Ting |
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Description: This code simulates maximal ratio combining-This is code simulates maximal ratio combining
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Author: petar davas |
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Description: BER of CDMA system with different combining techniques applied at receiver end to enhance the performance.
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Author: Saurabh |
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