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sasdw.rar
- 现有数字信号自动调制识别方法大多只适用于无记忆信号，如PSK、ASK、FSK信号等。将有记忆 信号(MSK信号)和无记忆信号一起考虑，提出了一种改进的数字信号自动识别方法。该方法采用信号的瞬时统 计量作为特征参数，采用多层神经网络作为分类器。计算机仿真表明：当噪声采用高斯白噪声，并且信噪比大于 l5 dB时，识别率高于96％ ；当信噪比不低于l0 dB时，识别率不低于90％。,Existing digital signal automatic modulation recognition
2ASK.二进制幅度键控
- ASK（二进制幅度键控）是一种最简单的数字信号的载波传输，本文通过对数字信号的2ASK调制，解调在不同信噪比的情况下误码率分析，得出不同信噪比下的误码率。 通过对2ASK的仿真更好的理解了数字调制系统的组成以及各模块的功能。 ,ASK (binary amplitude shift keying) is a simple digital signal carrier transmission, this paper 2ASK digital signal modulation, demod
Han_PAPRoverview_2005
- AN OVERVIEW OF PEAK-TO-AVERAGE POWER RATIO REDUCTION TECHNIQUES FOR MULTICARRIER TRANSMISSION
Surfel_FILE_COMPRESSION
- 针对点云数据局部集中的特点,使用差值预测对点云数据进行预测处理 在预测的同时,根据IEEE2754 浮点数标准,简化浮点数的尾数,使用3. 5 Byte来表示一个浮点数,以提高压缩效果 然后对预测数据中连续重 复的字节使用该字节加该字节重复的次数的方式存储 最后对经过以上处理的数据使用一阶自适应算术编码进 行压缩。最终得到的程序在压缩比和内存占用两个方面远优于WinRAR、WinZip压缩软件-Point cloud data for the characteristics of l
vtc98ochiai
- theperformanceofblockcoding scheme based on complementary sequences, which allows coding gain and reduction of peak to average power ratio(PAPR) of multicarrier signals, is evaluated overfrequency selectiveRayleighfading channel
wpmc98ochiai
- theperformanceofblockcoding scheme based on complementary sequences, which allows coding gain and reduction of peak to average power ratio(PAPR) of multicarrier signals, is evaluated overfrequency selectiveRayleighfading chann el
wpmc99ochiai
- theperformanceofblockcoding scheme based on complementary sequences, which allows coding gain and reduction of peak to average power ratio(PAPR) of multicarrier signals, is evaluated overfrequency selectiveRayleighfading chann el
OnPerformanceLimitsofDFTSpreadOFDMSystems
- OnPerformanceLimitsofDFTSpreadOFDMSystems DFT Spread OFDM has been proposed recently to reduce the Peak to Average Power Ratio (PAPR) of conventional OFDM transmission. Besides PAPR reduction, an important implication of DFT Spreading is t
A_Novel_Structure_of_Signal_Demodulation_in_High_
- In this paper, a novel demodulation structure in high-frequency (HF) channel is introduced and studied.Frequency-offset estimation, ractionally spaced adaptive equalization and carrier recovery techniques are involved.Frequency-offset correction is
runSimSCFDMA
- 单载波频分多址的研究，可以降低单载波的峰值平均功率比-Single-carrier frequency division multiple access research, can reduce the peak single-carrier average power ratio
54379
- We investigate the case of independent Rayleigh faded paths between antenna elements and find that with high probability extraordinary capacity is available. Compared to the baseline n = 1 case, which by Shannon’s classical formula scales as one
PAPR_OFDMprc
- PEAK TO AVERAGE POWER RATIO REDUCTION OF DM SIGNALS USING PEAK REDUCTION CARRIERS: ABSTRACT A technique is described for a better than 5 dB reduction in the Peak to Average Power Ratio (PAPR) of an OFDM signal. The optimal amplitude and pha
ArticleRODTS
- Recent developments in MRI applications to rheology and fluid mechanics. Two recent developments using proton MRI velocimetry are reported, that concern both fields of rheology and of fluid mechanics. The first one is a way to get noticeable impr
chengxu
- 小区同频干扰源码。建立基站、设置功率传输比...很有用的。-co-channel interference in matlab. Include establishing stations and power transmission ratio.
Reconstruct_on_of_oversampled_cosine_modulated_fil
- 本文首先推导出过采样滤波器组精确重构的条件, 由于此时所需的约束条件数比临界采 样时少, 因而可以设计出频域衰减特性更好的滤波器组-This paper is derived through sampling filters of exact reconstruction of conditions, due to time constraints required for critical extraction ratio When a small sample, so you
lowSNRFreES
- 本文利用软输入软输出信道译码器输出对数似然比随相位偏差变化的规律得到低信噪比MPSK信号的 相位偏差代价函数，并提出一种求解该代价函数的迭代相位搜索方法，以相对较小的运算量实现较高精度的相 位估计。仿真表明，该算法在低信噪比下具有稳定的性能，并且能够克服大多相位估计算法都存在的相位模糊 问题。-In this paper, the soft input soft output channel decoder output log-likelihood ratio with the v
Spectral-Efficiency-of-MC-CDMA-Linear-and-Non-Lin
- This paper analyzed the spectral efficiency (total channel capacity per subband) of randomly-spread synchronous multicarrier code-division multiple-access (MCCDMA) channel subject to frequency-selective fading in the asymptotic regime of number of us
Last-vogue
- thesis to implement all compulsory features of the WiMAX OFDM physical layer specified in IEEE 802.16-2004 in Matlab Simulink. Optional space-time coding for more than one transmit antenna is implemented to allow performance investigations in v
Maximal-Ratio-Combining-(MRC)
- this document describes the maximal ratio combining and give matlab code for that
Calculation-of-Peak-to-Average-Power-Ratio-in-OFD
- Calculation of Peak to Average Power Ratio in OFDM Transmission