Description: 完成对一段语音信号的短时分析，语音信号要包括清音、浊音和无声段，求其短时平均能量、短时平均过零率、短时自相关函数和短时功率谱；-Complete short-term analysis of a voice signal, the specific requirements: a voice signal to include the voiceless, voiced, and silent segments 2, find its short-term average energy, short-time average zero crossing rate, short-term autocorrelation function and short-term power spectrum 3, drawing, and the differences in the comparative analysis of three types of audio signals in the four short-term parameters 4, estimated using short-time autocorrelation voiced fundamental frequency using matlab to write and draw Platform: |
Size: 2048 |
Author:houjam |
Hits:
Description: 有一个信号，如果抽样频率，设计一个M点滑动平均系统，要求虑除信号中500Hz的成分，用MATLAB编程仿真结果，确定M的值并画出滑动平均系统的幅频特性图。-Have a signal, if the sampling frequency, to design a M point moving average systems, requirements, in addition to the composition of 500 hz in signal with MATLAB simulation results, determine the value of M and draw the amplitude-frequency characteristics of moving average systems.
Platform: |
Size: 1024 |
Author:caiyukui |
Hits:
Description: 小波变换在图像融合中的应用求出图片的均值，信噪比，空间频率，峰值信噪比等-The application of wavelet transform in image fusion, including to the application of wavelet transform in image fusion for the image of the mean, the signal-to-noise ratio, spatial frequency, the average peak signal-to-noise ratio and other images, Platform: |
Size: 35840 |
Author:李杰 |
Hits:
Description: Matlab code which implements MB-OFDM transmission block as per ECMA 368 standard.
OFDM over frequency selective wireless channels
simulation code for Peak-to-Average Power Ratio (PAPR) reduction in MIMO OFDM/A system using CMA
This is an OFDM simulation that gives you the PAPR, BER, and the PSD before and after the SSPA.
the program distribute an amount power among ofdm subchannel to make the capacity of a channel as ma
Representation of OFDM signal with PAPR reduction using Clipping and SLM Techniques.
The complete project of OFDMA system. It tries to maximize the network capacity.
Link and system level simulator for OFDM based wireless broadband systems
Ultrawideband (UWB) multiband OFDM physical layer with fixed-point transmitter/receiver modeling.
Platform: |
Size: 858112 |
Author:Sina |
Hits:
Description: 正交频分复用(OFDM)技术是一种可以有效对抗符号间干扰(ISI)的高速数据传输技术。OFDM是一种特殊的多载波调制方式，它的基本思想是将高速传输的数据流通过串/并转换，变成在若干个正交的窄带子信道上并行传输的低速数据流。OFDM接收机有三个关键技术：信道估计技术，降低峰均比(PAPR)技术和同步技术。OFDM技术能有效的对抗多径衰落等，有着诸多的优点，但是OFDM有一个发展瓶颈，即OFDM信号的峰均功率比很大，很容易导致OFDM信号的交调失真和系统性能的下降。因而如何降低OFDM信号的峰均功率比一直是OFDM技术的一个研究热点问题。论文针对上述问题，重点研究了降低OFDM信号的峰均功率比的SLM与PTS算法，并利用Matlab对算法进行了仿真研究，并对仿真结果进行了分析。-Orthogonal frequency division multiplexing (OFDM) is a high-speed data transmission technology that can effectively combat inter-symbol interference (ISI). OFDM is a special multi-carrier modulation method, its basic idea is to high-speed transmission of data stream through the serial/parallel conversion, in a number of orthogonal narrowband sub-channel parallel transmission of low-speed data stream. OFDM receivers have three key technologies: channel estimation techniques, reduced peak-to-average ratio (PAPR) techniques and synchronization techniques. OFDM technology can effectively combat multipath fading, etc., there are many advantages, but OFDM has a bottleneck in development, that is, OFDM signal peak power ratio is large, it is easy to lead to OFDM signal intermodulation distortion and system performance degradation. Therefore, how to reduce the peak-to-average power ratio of OFDM signal has been a hot topic in OFDM technology. In this paper, the SLM and PTS algorithms for reduc Platform: |
Size: 142336 |
Author:num113 |
Hits:
Description: 要求对一段数据序列进行哈夫曼编码，使得平均码长最短，输出各元素编码和编码后的数据序列。
①组成序列的元素是[0-9]这10个数字，每个数字其对应的4位二进制数表示。比如5对应0101，9对应1001。
②输入数据序列的长度为256。
③先输出每个元素的编码，然后输出数据序列对应的哈夫曼编码序列。(Design a 1MHz FIR low pass filter.
Huffman coding is required for a section of data sequence to make the average code length the shortest, and the output of each element encoding and the encoded data sequence.
The elements of the sequence are the 10 Numbers [0-9], each of which corresponds to a 4-bit binary representation.
Let's say 5 is equal to 0101, and 9 is equal to 1001.
The length of the input data sequence is 256.
First output the encoding of each element, and then output the data sequence corresponding Huffman coding sequence.
Requirements:
(1) clock signal frequency 16MHz;
(2) input signal bit width of 8bits, symbol rate of 16MHz
Requirements in Matlab FIR filter floating-point and fixed-point simulation, and determine the FIR filter tap coefficient
(4) write the test simulation program.) Platform: |
Size: 182272 |
Author:羊羊驼 |
Hits:
Search - average frequency of the signal in matlab