Description: ：首先介绍了DS--UWB系统的的发射与接收模型，然后分析了利用滑动相关法对信道进行估讣，并巾此给出
了不同RAKE接收机RAKE合成权系数选取方案。对接收机采用最大比(MRC)、最小均方误差(MM SE)及带均衡
器的(MRC)合并系数选取的误码性能进行了仿真和对比。结果表明了带均衡器的MRC—RAKE只用较少的分支
就可以达到接收性能明显优于MMSE—RAKE的程度。尤其在信噪比比较大时。这种优势更加明显。-: First of all, the introduction of the DS UWB system model of the launch and reception, and then analyzed using the sliding correlation method for estimation of channel obituary, and towels, this gives the RAKE receiver RAKE synthesis of different weights to select the program. On the receiver using maximal ratio (MRC), minimum mean square error (MM SE) and band equalizer (MRC) combined coefficient selected BER simulation and comparison. The results show that the equalizer with MRC-RAKE only with fewer branches on the receiver performance can be achieved significantly better than MMSE-RAKE level. Particularly in the relatively large signal to noise ratio. This advantage becomes even more evident. Platform: |
Size: 207872 |
Author:季昀 |
Hits:
Description: ：首先介绍了DS--UWB系统的的发射与接收模型，然后分析了利用滑动相关法对信道进行估讣，并巾此给出
了不同RAKE接收机RAKE合成权系数选取方案。对接收机采用最大比(MRC)、最小均方误差(MM SE)及带均衡
器的(MRC)合并系数选取的误码性能进行了仿真和对比。结果表明了带均衡器的MRC—RAKE只用较少的分支
就可以达到接收性能明显优于MMSE—RAKE的程度。尤其在信噪比比较大时。这种优势更加明显。-: First of all, the introduction of the DS UWB system model of the launch and reception, and then analyzed using the sliding correlation method for estimation of channel obituary, and towels, this gives the RAKE receiver RAKE synthesis of different weights to select the program. On the receiver using maximal ratio (MRC), minimum mean square error (MM SE) and band equalizer (MRC) combined coefficient selected BER simulation and comparison. The results show that the equalizer with MRC-RAKE only with fewer branches on the receiver performance can be achieved significantly better than MMSE-RAKE level. Particularly in the relatively large signal to noise ratio. This advantage becomes even more evident. Platform: |
Size: 1024 |
Author:季昀 |
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Description: Adaptive Filter. This script shows the BER performance of several types of equalizers in a static channel with a null in the passband. The script constructs and implements a linear equalizer object and a decision feedback equalizer (DFE) object. It also initializes and invokes a maximum likelihood sequence estimation (MLSE) equalizer. The MLSE equalizer is first invoked with perfect channel knowledge, then with a straightforward but imperfect channel estimation technique. -Adaptive Filter. This script shows the BER performance of several types of equalizers in a static channel with a null in the passband. The script constructs and implements a linear equalizer object and a decision feedback equalizer (DFE) object. It also initializes and invokes a maximum likelihood sequence estimation (MLSE) equalizer. The MLSE equalizer is first invoked with perfect channel knowledge, then with a straightforward but imperfect channel estimation technique. Platform: |
Size: 134144 |
Author:zhang |
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Description: OFDM信道估计程序。
该程序包可生成OFDM信号，可显示经衰落信道变化后的OFDM信号波形，且给出了LS，LMMSE多种信道估计算法。-OFDM channel estimation procedure. The package can generate OFDM signals can be displayed by the fading channel changes of OFDM signal waveforms, and gives the LS, LMMSE channel estimation algorithm for a wide range. Platform: |
Size: 13312 |
Author:黄翔东 |
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Description: 基带ofdm系统接收端的各个模块实现，检测，信道估计，解调等仿真-Base-band OFDM system, the receiving end of each module to achieve, detection, channel estimation, demodulation, such as simulation Platform: |
Size: 9216 |
Author:李华 |
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Description: 详细的论述了802.15.4a的信道特性以及四种信道的参数选择，对做超宽带方面的人很有用，因为大家都知道信道估计的重要型。-Detail the 802.15.4a channel characteristics, as well as the parameters of four-channel option of doing the people aspects of ultra-wideband very useful, because we all know the importance of channel estimation type. Platform: |
Size: 1482752 |
Author:nini |
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Description: This paper considers semiblind channel estimation
and data detection for orthogonal frequency-division multiplexing
(OFDM) over frequency-selective fading channels.-This paper considers semiblind channel estimationand data detection for orthogonal frequency-division multiplexing (OFDM) over frequency-selective fading channels. Platform: |
Size: 409600 |
Author: |
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Description: Algorithms for the estimation of a channel whose
impulse response is characterized by a large number of zero
tap coefficients are developed and compared.-Algorithms for the estimation of a channel whoseimpulse response is characterized by a large number of zerotap coefficients are developed and compared. Platform: |
Size: 410624 |
Author: |
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Description: OFDM信道估计和均衡的仿真程序，包括MMSE、LS、ZF等方法。-OFDM channel estimation and balanced simulation program, including the MMSE, LS, ZF and other methods. Platform: |
Size: 18432 |
Author:李继龙 |
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Description: 基于TURBO原则的UWB信道估计与接收机研究——论文，文件为KDH格式-TURBO based on the principle of UWB channel estimation and receiver Research- papers, documents KDH format Platform: |
Size: 14099456 |
Author:艾小溪 |
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Description: 在OFDM仿真模型的基础上用MATLAB语言编写出OFDM发送、信道及接收整个系统,在系统仿真正确的前提下,对循环前缀、信道估计等性能改善方法进行进一步仿真验证,得到了预期的理想结果
-In OFDM simulation model based on the use of MATLAB language to send the OFDM, channel and receive the entire system, in the system under the premise of the correct simulation of the cyclic prefix, channel estimation methods for further performance improvement simulation, have been expected results Platform: |
Size: 2048 |
Author:达摩 |
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Description: 基于均方误差参数比较OFDM系统中LS和MMSE两种自适应信道估计算法的性能，程序开头都有英文注释，可以直接运行的~个人认为写得比较好，跟大家一起分享~-Based on the Mean Square Error Comparison of OFDM system parameters LS and MMSE channel estimation of two adaptive algorithms, procedures are available in English at the beginning of the Notes, you can directly run the ~ personally think that is better written, with the U.S. to share ~ Platform: |
Size: 4096 |
Author:Panda |
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Description: 这是关于OFDM无线宽带移动通信系统中信道估计与均衡技术研究方面的一篇好文章-This is on the OFDM wireless broadband system for mobile communications channel estimation and equalization of a good research article Platform: |
Size: 2198528 |
Author:yufe |
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Description: ofdm系统的信道估计算法，画出了系统误码率-OFDM system channel estimation algorithm, draw the system bit error rate Platform: |
Size: 2048 |
Author:小丽 |
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