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Description: 以前的数字图像处理作业，包括直方图，均衡，Sobel，中值，FFT,IFFT,DCT,IDCT,8*8DCT等-previous digital image processing operations, including the histogram, balanced and Sobel, values, FFT, IFFT, DCT, IDCT, 8 * 8DCT etc.
Platform: |
Size: 72130 |
Author: 李平 |
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Description: 8-1024可变点数FFT/IFFT变换,VHDL语言设计,
仿真通过,可以很容易综合.-8-1024 points FFT / IFFT transform, VHDL design, simulation, can easily integrated.
Platform: |
Size: 275003 |
Author: citybus |
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Description: Cadence SPW 4.8.2，数字电视地面广播中3780点IFFT的源码。-Cadence SPW 4.8.2. Digital Terrestrial Television Broadcasting 3,780 point IFFT the source.
Platform: |
Size: 5158 |
Author: 黄丽 |
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Description: OFDM仿真
参数：
％ 子载波数 128
％ 位数/ 符号 2
％ 符号数/ 载波 1000
％ 训练符号数 0
％ 循环前缀长度 8 (1/16)*T
％ 调制方式 4-QAM
％ 多径信道数 3
％ IFFT Size 128
％ 信道最大时延 2
-OFDM simulation parameters : % subcarriers median number of 128% / 2% Symbol Symbol / Carrier Training 1000% 0% Symbol few cyclic prefix length 8 (1 / 16) * T% modulation 4-QAM% multi-path channel number 3% 128% Size IFFT letter Maximum delay 2
Platform: |
Size: 19476 |
Author: 高源 |
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Description: ＯＦＤＭ程序 波形如下
子载波数 128
％ 位数/ 符号 2
％ 符号数/ 载波 100
％ 训练符号数 0
％ 循环前缀长度 8 (1/16)*T
％ 调制方式 4-QAM
％ 多径信道数 3
％IFFT Size 128
％ 信道最大时延 2-OFDM waveform procedures following subcarriers median number of 128% / 2% Symbol Symbol / Carrier 100% Training a few symbols 0% cyclic prefix length 8 (1 / 16) * T% modulation 4-QAM% multi-path channel number 3% IFFT Size 128% maximum delay Channel 2
Platform: |
Size: 3857 |
Author: 唐成玉 |
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Description: 此程式具有三种FFT演算法,分别是radix-2 radix-4 radix-8,可选择其中一种演算法,接着输入FFT点数,程式就会执行FFT/IFFT,可以藉此知道是否正确
Platform: |
Size: 2258 |
Author: 陈荣 |
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Description: 以前的数字图像处理作业，包括直方图，均衡，Sobel，中值，FFT,IFFT,DCT,IDCT,8*8DCT等-previous digital image processing operations, including the histogram, balanced and Sobel, values, FFT, IFFT, DCT, IDCT, 8* 8DCT etc.
Platform: |
Size: 2109440 |
Author: 李平 |
Hits:
Description: 8-1024可变点数FFT/IFFT变换,VHDL语言设计,
仿真通过,可以很容易综合.-8-1024 points FFT/IFFT transform, VHDL design, simulation, can easily integrated.
Platform: |
Size: 274432 |
Author: citybus |
Hits:
Description: Cadence SPW 4.8.2，数字电视地面广播中3780点IFFT的源码。-Cadence SPW 4.8.2. Digital Terrestrial Television Broadcasting 3,780 point IFFT the source.
Platform: |
Size: 5120 |
Author: 黄丽 |
Hits:
Description: OFDM仿真
参数：
％ 子载波数 128
％ 位数/ 符号 2
％ 符号数/ 载波 1000
％ 训练符号数 0
％ 循环前缀长度 8 (1/16)*T
％ 调制方式 4-QAM
％ 多径信道数 3
％ IFFT Size 128
％ 信道最大时延 2
-OFDM simulation parameters : % subcarriers median number of 128%/2% Symbol Symbol/Carrier Training 1000% 0% Symbol few cyclic prefix length 8 (1/16)* T% modulation 4-QAM% multi-path channel number 3% 128% Size IFFT letter Maximum delay 2
Platform: |
Size: 19456 |
Author: 高源 |
Hits:
Description: ＯＦＤＭ程序 波形如下
子载波数 128
％ 位数/ 符号 2
％ 符号数/ 载波 100
％ 训练符号数 0
％ 循环前缀长度 8 (1/16)*T
％ 调制方式 4-QAM
％ 多径信道数 3
％IFFT Size 128
％ 信道最大时延 2-OFDM waveform procedures following subcarriers median number of 128%/2% Symbol Symbol/Carrier 100% Training a few symbols 0% cyclic prefix length 8 (1/16)* T% modulation 4-QAM% multi-path channel number 3% IFFT Size 128% maximum delay Channel 2
Platform: |
Size: 4096 |
Author: 唐成玉 |
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Description: 此程式具有三种FFT演算法,分别是radix-2 radix-4 radix-8,可选择其中一种演算法,接着输入FFT点数,程式就会执行FFT/IFFT,可以藉此知道是否正确-This program has three FFT algorithms are radix-2 radix-4 radix-8, can choose one algorithm, and then enter the FFT points, the program will be the implementation of FFT/IFFT, can take this know whether this is correct
Platform: |
Size: 2048 |
Author: 陈荣 |
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Description: WLAN仿真－发送机
wlan No Comments
设置完系统参数后，开始产生发送数据。
1. 产生随机的发送bit（tx_bits），这里不考虑信道编码。
2. QAM映射
3. 将数据映射到不同载波，形成OFDM符号
4. 产生pilot，并将pilot插入OFDM符号中
5. 加入dc和guard子载波
6. 进行ifft，将频域信号变到时域，并加入循环前缀
7. 对信号进行overlap window
8. 在时域产生short preamble
9. 在时域产生long preamble
10. 将preamble和数据符号组成packet
11. 升采样
得到信道传输的数据Tx_signal_up
具体程序见附件 wlan_transmitter.m-WLAN Simulation- wlan No Comments transmitter system parameters set finished, the beginning to have to send data. 1. Have sent random bit (tx_bits), here does not consider channel coding. 2. QAM mapping 3. The data is mapped to a different carrier to form OFDM symbols 4. Have a pilot, and pilot inserted OFDM symbols 5. Adding dc and guard subcarriers 6. To carry out ifft, will change the frequency domain signal to time domain, and add cyclic prefix 7. the signals overlap window8. In the time domain have a short preamble9. In the time domain have a long preamble10. the preamble and data symbols packet11. or sampling received data transmission channel Tx_signal_up specific procedures see Annex wlan_transmitter.m
Platform: |
Size: 1024 |
Author: 福东方 |
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Description: 子载波数 128
位数/ 符号 2
符号数/ 载波 1000
训练符号数 0
循环前缀长度 8 (1/16)*T
调制方式 4-QAM
多径信道数 3
IFFT Size 128
信道最大时延 2
-Subcarriers median number of 128 percent/2 percent symbol symbol number/carrier training symbols 1000 a few 0 cyclic prefix length of 8 (1/16)* T modulation 4-QAM the number of multi-path channel 3 IFFT Size 128 the largest delay channel 2
Platform: |
Size: 24576 |
Author: 张川 |
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Description: Add pilot symbols to the input data just before transmission
2. Implement cyclic prefix (CP), use 10 of symbol length. Divide the 64
input data points into 8-bit streams, generate and append the CP based
on each symbol
3. Include complex noise into transmitted signal
Organization of Transmitter end of OFDM System
a. Generate Data
b. Modulate
c. Serial to Parallel
d. Cyclic Prefix (CP)
e. Add Pilot points
f. IFFT
g. Parallel to Serial
-Add pilot symbols to the input data just before transmission
2. Implement cyclic prefix (CP), use 10 of symbol length. Divide the 64
input data points into 8-bit streams, generate and append the CP based
on each symbol
3. Include complex noise into transmitted signal
Organization of Transmitter end of OFDM System
a. Generate Data
b. Modulate
c. Serial to Parallel
d. Cyclic Prefix (CP)
e. Add Pilot points
f. IFFT
g. Parallel to Serial
Platform: |
Size: 10240 |
Author: ibrahim |
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Description: OFDM下行的仿真1、产生要传输随机数；
2、进行调制；
3、串并转换；
4、进行IFFT操作（代码中有用到共轭对称向量的IFFT为实数进行简化计算）；
5、增加循环前缀；
6、并串转换；
7、输出前滤波；
8、增加信道噪声（加性高斯白噪声）；
9、接收端串并转换；
10、去除循环前缀；
11、进行FFT变换；
12、信号解调；
13、误比特率计算；
-OFDM downlink simulation 1, have to be transmitted random number 2, the modulation 3 series and transforms 4, the IFFT operation (code useful to conjugate symmetric vector of the IFFT of real numbers to simplify calculations) 5, the increase in circulating prefix 6, and string conversion 7, the output before the filter 8, increased channel noise (additive white Gaussian noise) 9, the receiver string and conversion 10, removal of cyclic prefix 11, the FFT transform 12 , the signal demodulation 13, bit error rate
Platform: |
Size: 112640 |
Author: 刘洋 |
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Description: 2D FFT and 2D IFFT in matlab. inputs are original data and block size. ex) block size = [8 8]
Platform: |
Size: 231424 |
Author: nishina |
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Description: ofdm仿真程序
子载波数 128
位数/ 每符号 2
符号数/ 每载波 1000
训练符号数 0
循环前缀长度 8 (1/16)*T
调制方式 4-QAM
多径信道数 3
IFFT Size （点数） 128
信道最大时延 2
-OFDM simulation program, using QAM modulation
Platform: |
Size: 22528 |
Author: Peter |
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Description: ml时频同步算法，基于OFDM系统的。子载波数 128
位数/ 符号 2
符号数/ 载波 100
训练符号数 0
循环前缀长度 8 (1/16)*T
调制方式 4-QAM
多径信道数 3
IFFT Size 128
信道最大时延 2-ml frequency synchronization algorithm, based on the OFDM system. Digit of the number of subcarriers 128 /2 Symbol Symbol/Carrier 100 0 training symbol cyclic prefix length 8 (1/16)* T modulation 4-QAM multipath channel number 3 IFFT Size 128 maximum delay of channel 2
Platform: |
Size: 3072 |
Author: chenkun |
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Description: ofdm程序4QAM调制。 子载波数 128
位数/ 符号 2
符号数/ 载波 1000
训练符号数 0
循环前缀长度 8
调制方式 4-QAM
多径信道数 3
IFFT Size 128
信道最大时延 2-ofdm program 4QAM modulation. Subcarriers median number of 128 /2 Symbol Symbol/carrier cyclic prefix length of the number of training symbols of 1000 0 8 modulation mode 4-QAM multi-path channel number 3 the IFFT Size 128 channel maximum delay
Platform: |
Size: 2048 |
Author: xiaoxi |
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