Search - decision directed

Search - decision directed - List

[matlab] CMA_DD-LMS DL : 5: 盲均衡中的应用，CMA+DDLMS（常数模+判决引导最小均方）算法的Matlab程序，用来处理16-QAM信号。-Application of blind equalization, CMA+ DDLMS (Constant Modulus+ Decision-directed least mean square) algorithm of Matlab procedures used to deal with 16-QAM signal.
Update : 2025-04-26 Size : 2kb Publisher : linning
[Program doc] CMA DL : 0: 一种新的基于数据可靠性判决引导的CMA盲均衡算法.pdf-A new decision-directed based on the data reliability of the CMA blind equalization algorithm. Pdf
Update : 2025-04-26 Size : 96kb Publisher : z
[Fax program] ofdm_fh DL : 0: 采用正交频分复用（OFDM）调制的跳频系统仿真模块，利用Simulink工具箱搭建。可更改跳频跳速,跳频频率数，载波频率，跳频间隔，FFT运算长度,循环前缀位数等相关参数。信道采用瑞利多径衰落信道和高斯信道，相关参数也可更改。希望有一定的参考价值，也希望站长开通我的下载功能，ID：gly201,非常感谢！-A simulation on Hopping Frequency communication system based on the OFDM technique.
Update : 2025-04-26 Size : 14kb Publisher : gly
[Program doc] CE DL : 0: DMBT-清华信道估计算法 [Fang Yang] Novel decision-directed channel estimation method for TDS-OFDM system [C]2008 (Tsinghua)-[Fang Yang] Novel decision-directed channel estimation method for TDS-OFDM system [C]2008 (Tsinghua)
Update : 2025-04-26 Size : 606kb Publisher : 秦问
[Communication] R1-091695 DL : 0: Phase noise resulting in Common Phase Error (CPE) and Inter-Carrier Interference (ICI) is a critical challenge to the implementation of OFDM systems. Modeling phase noise as a stationary Gaussian random process with the specified power spectrum density, different from conventional approaches which mostly relay on pilots to provide CPE estimation, we explore the statistical characteristics of the sufficient statistics then propose a pilot-aided decision-directed approach according to maximum-likelihood criterion. Numerical results demonstrate that the proposed algorithm enjoys 2dB gain at moderate SNR and is quite robust against possible model mismatch
Update : 2025-04-26 Size : 145kb Publisher : xiaobo
[Communication] R1-091775 DL : 0: Phase noise resulting in Common Phase Error (CPE) and Inter-Carrier Interference (ICI) is a critical challenge to the implementation of OFDM systems. Modeling phase noise as a stationary Gaussian random process with the specified power spectrum density, different from conventional approaches which mostly relay on pilots to provide CPE estimation, we explore the statistical characteristics of the sufficient statistics then propose a pilot-aided decision-directed approach according to maximum-likelihood criterion. Numerical results demonstrate that the proposed algorithm enjoys 2dB gain at
Update : 2025-04-26 Size : 83kb Publisher : xiaobo
[Communication] R1-092264 DL : 0: Phase noise resulting in Common Phase Error (CPE) and Inter-Carrier Interference (ICI) is a critical challenge to the implementation of OFDM systems. Modeling phase noise as a stationary Gaussian random process with the specified power spectrum density, different from conventional approaches which mostly relay on pilots to provide CPE estimation, we explore the statistical characteristics of the sufficient statistics then propose a pilot-aided decision-directed approach according to maximum-likelihood criterion. Numerical results demonstrate that the proposed algorithm enjoys 2dB gain at moderate SNR and is quite robust against possible model mismatch
Update : 2025-04-26 Size : 6kb Publisher : xiaobo
[Speech/Voice recognition/combine] BackGround_Noise_Cancellation DL : 0: The two-step noise reduction (TSNR) technique removes the annoying reverberation effect while maintaining the benefits of the decision-directed approach. However, classic short-time noise reduction techniques, including TSNR, introduce harmonic distortion in the enhanced speech.
Update : 2025-04-26 Size : 3kb Publisher : SimonKap22
[Communication-Mobile] soft_and_hard_decision_on_viterbi_decoder DL : 0: With using noisy data and created data, soft and hard decision are made by viterbi decoder
Update : 2025-04-26 Size : 8kb Publisher : Cagdas
[Other] adaptive_all_in_one DL : 0: 自适应滤波器方面的10个例子，共包括自适应滤波，盲均衡，解相关型LMS算法，TRAINING MODE and DECISION DIRECTED MODE，噪声消除，自适应滤波器设计等内容-Adaptive filter in 10 cases, and it includes adaptive filtering, blind equalization, decorrelation-based LMS algorithm, TRAINING MODE and DECISION DIRECTED MODE, noise cancellation, adaptive filter design etc.
Update : 2025-04-26 Size : 7kb Publisher : 平凡
[Speech/Voice recognition/combine] noise_reduction_technique DL : 0: duction techniques proposed in the art are expressed as a spectral gain depending on the a priori SNR. In the well-known decision- directed approach, the a priori SNR depends on the speech spec- trum estimation in the previous frame. As a consequence the gain function matches the previous frame rather than the current one which degrades the noise reduction performance. We propose a new method called Two-Step Noise Reduction (TSNR) technique which solves this problem while maintaining the beneﬁ ts of the decision-directed approach. This method is analyzed and results in voice communication and speech recognition context are given.-noise estimate
Update : 2025-04-26 Size : 190kb Publisher : leon
[Speech/Voice recognition/combine] lee_vad DL : 0: 一个基于MMSE噪声后验概率估计的话音激活检测算法.-A voice activity detector with MMSE a posteriori noise estimation and Decision-Directed SNR estimation
Update : 2025-04-26 Size : 2kb Publisher : zwlin
[Modem program] computingBERConvolutionalCod3 DL : 0: Script for computing BER with Binary Convolutional Code and Viterbi decoding. Convolutional code of Rate-1/2, Generator polynomial - [7,5] octal Hard decision and soft decison decoding is used. -Script for computing BER with Binary Convolutional Code and Viterbi decoding. Convolutional code of Rate-1/2, Generator polynomial - [7,5] octal Hard decision and soft decison decoding is used.
Update : 2025-04-26 Size : 6kb Publisher : thefar2012star
[ELanguage] simcoded DL : 0: FUNCTION: Simulated Soft-Decision Decoding Bit Error Rate of Hamming-Coded Coherent Binary PSK
Update : 2025-04-26 Size : 1kb Publisher : falai
[matlab] CDMA_SD DL : 0: technique d accès multiple CDMA (Code Division Multiple Access)avec une technique SD (Soft Decision)
Update : 2025-04-26 Size : 1kb Publisher : FENNI
[Software Engineering] ijacspv24n6 DL : 0: This contribution considers semi-blind adaptive equalization for communication systems that employ high-throughput quadrature amplitude modulation signalling. A minimum number of training symbols, approximately equal to the dimension of the equalizer, are first utilized to provide a rough initial least-squares estimate of the equalizer’s weight vector. A novel gradient-Newton concurrent constant modulus algorithm and soft decision-directed scheme are then applied to adapt the equalizer. The proposed semi-blind adaptive algorithm is capable of converging fast and accurately to the optimal minimum mean-square error equalization solution. Simulation results obtained demonstrate that the convergence speed of this semi-blind adaptive algorithm is close to that of the training-based recursive least-square algorithm
Update : 2025-04-26 Size : 181kb Publisher : yh
[Program doc] Impulse-Noise-Mitigation-for-OFDM-Using-Decision- DL : 0: Impulse Noise Mitigation for OFDM Using Decision Directed Noise Estimation
Update : 2025-04-26 Size : 199kb Publisher : katha
[Program doc] Decision-Directed-Burst-Mode-Carrier DL : 0: 突发通信下判决引导的载波同步技术，突发通信下判决引导的载波同步技术-Decision-Directed Burst-Mode Carrier Synchronization Techniques
Update : 2025-04-26 Size : 855kb Publisher : yangyi
[Communication-Mobile] Adaptive-Decision-Directed-Quantized-State-Algori DL : 0: addaptive decision directed quantize algorithm
Update : 2025-04-26 Size : 393kb Publisher : Aakik Islam
[Program doc] Packet-Format-Design-and-Decision-Directed-Tracki DL : 0: PERFORMANCE COMPARISON OF ADAPTIVE DECISION FEEDBACK EQUALIZER AND BLIND DECISION FEEDBACK EQUALIZER. This is a Thesis Project.
Update : 2025-04-26 Size : 779kb Publisher : Honaleum

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