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gade
- LDPC的高近似程序。高斯近似是分析LDPC的有力工具，能够求得门限和最有度分布对优化。-LDPC high approximation procedures. Gaussian approximation LDPC analysis is a powerful tool that can achieve threshold and the most optimal distribution right.
xiaobohezixiangguan
- 本文提出了一种利用二进制小波变换和短时自相关函数相结合的算法来检测语音信号的基音周期。它克服了单纯的短时自相关函数法对含噪语音检测时阈值难以确定的缺陷。-This paper proposes the use of a binary wavelet transform and short-time auto-correlation function of combining voice algorithm to detect letter Pitch No. cycle. It overcome
lwmf026
- 这么多门槛，还让人以后怎么等你的网站！晕死 -so many threshold, but also how other people after your site! Unconscious
AWGN
- 未编码BPSK性能AWGN信道理论误码率 简化的格栅函数 门限近似函数 AWGN信道香农限（Shannon Limit）-Performance of uncoded BPSK AWGN channel BER simplified grille theoretical threshold function approximation function AWGN channel Shannon limit (Shannon Limit)
gongzhen
- 描述阀值系统中的随机共振现象，其中fazhi2是二进制随机信号加入高斯噪声的随机共振现象。-System descr iption of threshold stochastic resonance phenomenon, which is a binary random signal fazhi2 adding Gaussian noise of the stochastic resonance phenomenon.
ns2_in_book
- NS2网络仿真源码，包含书上所有的内容。直接直接使用。-NS2 network simulation source code, including all the contents of the book. Direct direct use.
Spectrum-Sensing-in-CR
- 谱感知技术是认知无线电(CR)的关键技术,频谱检测的可靠度和精度决定了是否会影响主用户的正常通信及认知用户能否有效利用频谱.在频谱检测的众多方法中,能量检测法是一种常用的方法,但能量检测器的门限很容易受到噪声功率变化的影响,影响主用户的正常通信.笔者提出一种自适应背景噪声的门限设置方法,通过引入门限评价指数作为衡量频谱感知效率和频谱资源利用率的度量指标,使得认知用户在不同的应用环境中能自适应地设置频谱感知门限,达到更充分利用频谱资源和更有效传送信号的目的.仿真证明,该方法确定的门限能够随着噪声条
carrier
- The goal of this e is to understand the concept of Carrier-Sensing in IEEE 802.11 standard and compare Physical Carrier Sense and Virtual Carrier Sense mechanisms. Recall that when Physical Carrier Sense is used, a node seeking to transmit first as
quzao
- 仿照着《小波去噪中软硬阈值的一种改良折衷法》一文写的程序，对比了软、硬以及软硬阈值折衷法的信噪比及均方根误差。仿真出来之后，原信号的信噪比是负的，不知道为什么？均方根误差的值也比较大，不知何解？信噪比和均方根误差是参照《基于matlab的小波去噪仿真》：吴伟，《信息与电子工程》 一文写的-Modeled on the written procedures of the hard and soft threshold wavelet de-noising an improved compromis
spectral-subtraction-algorithm
- 本文首先研究了语音激活检测算法。对基于短时能量和短时过零率双门限法语音激活检测的噪声估计算法做了研究及仿真，同时还研究了一种基于最小子带能量的噪声估计方法。-Firstly, studied voice activity detection algorithms. Based on activity detection and short-term energy zero rate threshold method voice noise estimation algorithm to do t
yuzhiDFT
- 采用阈值法对解调出的信号进行DFT评估，可以最大程度的恢复出原信号，提高了系统的准确性。-Using the threshold method demodulated signal DFT assessment can recover the maximum degree of the original signal to improve the accuracy of the system.
Energy-Detection
- These are the code for energy detection.these code also describe about threshold,probability of detection,probability of false alarm,etc-These are the code for energy detection.these code also describe about threshold,probability of detection,probabi