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Strapdown
- 一、数据说明： 1：惯导系统为指北方位的捷连系统。初始经度为116.344695283度、纬度为39.975172度,高度h为30米。 初速度为v0=[0.000048637 0.000206947 0.007106781]，飞行高度不变。 2：jlfw中为600秒的数据，陀螺仪和加速度计采样周期分别为为1/80秒和1/80秒。 3：初始姿态角为[0.120992605 0.010445947 91.637207]（俯仰，横滚，航向,单位为度）, jlfw中保存的为比力信
BERsimulationwithmatlab.pdf
- Introduction Matlab is an ideal tool for simulating digital communications systems, thanks to its easy scr ipting language and excellent data visualization capabilities. One of the most frequent simulation tasks in the field of digital communic
9854125413
- 运动估计是视频编码的关键技术，其最基本的原理是利用相邻帧间的时间 相关性，通过预测来减少时间冗余度。在实际编码中，为了节省码率，并不传 输每一帧的全部数据，而是利用运动估计求出每一帧与其预测参考帧之间的差 值。运动估计越准确，差值的分布越趋近与零，差值块的能量越小，经过变换、 量化和熵编码后所产生的码流的比特位率也越少。因此，运动估计搜索的准确 程度直接影响到了编码的压缩性能。 -Motion estimation is the key to video encodin
bit_power_allocation
- ：该文研究OFDM 系统在总功率和误比特率限定下最大化传输速率的问题，并且考虑实际系统中整数比特的限制， 提出基于灌水法则的两种比特分配算法——改进贪婪算法和对分灌水线搜索法-The maximization of data rate under the constraint of total transmit power and bit error rate is a considerable issue in OFDM system. Recognizing that the num
mcbpsk
- 用蒙特卡罗仿真研究一个通信系统的误比特率BER。假设通信系统满足条件：信源输出的数据符号是相互独立和等概的；在发射机中没有进行脉冲形成；信道是AWGN信道-Using Monte Carlo simulation of a communication system bit error rate BER. Suppose communications systems to meet the conditions: the data source output symbols are indepen
tber2
- Quadrature amplitude modulation (QAM) is a modulation scheme in which two sinusoidal carriers, one exactly 90 degrees out of phase with respect to the other, are used to transmit data over a given physical channel. One signal is called the I sign
IS95_forward_code
- 本程序针对高通公司开发的IS-95通信系统，是一个相对完整的IS-95前向信道的仿真源程序，包括Viterbi编码，数据调制，基于RAKE接收机的解调，实现软判决输入的Viterbi译码等模块，并包括有误码率的计算和性能仿真显示。 -The procedure developed for Qualcomm IS-95 communication system, is a relatively complete IS-95 forward channel simulation source c
Leaflet_WCDMAchannels
- the comb pilot aided channel estimation in ofdm modulation is considered. the power of pilot subchannels is under the control. The data experience frequency selective channel then the AWGN noise is added to make the situation worse. The bit error
kaSat
- 设计并仿真了适合Ka 频段卫星移动信道的信号传输体制仿真结果为最终实现方案提供 了可靠的数据同时针对所设计的Turbo 编码和GMSK 调制相结合的信号传输体制提出了迭 代信道估计算法明显改善了系统的误码率BER 性能-Designed and simulated for Ka-band mobile satellite channel signal transmission system simulation results for the final program provides
nosise-trait-
- 这是一个AWGN信道下，编译码仿真的C程序。本人已经用它产生数据绘制折线图！包含编码，译码，信道模拟，误码率计算 …… ,程序结构清晰，不复杂，适合与初学者来了解，基本通信流程！-This is an AWGN channel, the decoding simulation C program. I' ve used it to generate data to draw a line chart! Including encoding, decoding, channel simula
Content
- A multiple-input multiple-output (MIMO) communication system combined with the orthogonal frequency division multiplexing (OFDM) modulation technique can achieve reliable high data rate transmission over broadband wireless channels. Channel state i
project1
- 摘要：用MATLAB对基带数据传输解调检测进行仿真，推导不同先验概率下，接收端最小错误的判决门限。仿真不同先验概率下的误码性能，二进制与多进制的误码性能比较，码间串扰对误码性能的影响，及频偏对串行通信误码率的影响。 关键词：MATLAB，基带传输，检测，判决门限 -Abstract: Using MATLAB for baseband demodulation simulation data derived under different prior probability, the r
WBF
- 迭代解码算法Weighted Bit-Flipping Algorithm，可对比数据计算误码率-Iterative decoding algorithm for Weighted Bit-Flipping Algorithm, error rate can be calculated comparing the data
adjustBW
- Bandwidth (signal processing) or analog bandwidth, frequency bandwidth or radio bandwidth: a measure of the width of a range of frequencies, measured in hertz Bandwidth (computing) or digital bandwidth: a rate of data transfer, bit rate or through
rs
- 针对通信中的数据传输系统存在随机干扰和突发干扰而使接收端收到误码的问题,提出了RS+交织器级联码的纠错方案,并利用MATLAB对RS +卷积交织器级联在加性高斯白噪声和瑞利衰弱信道中的纠错性能进行了仿真分析，并通过使用不同的卷积深度的仿真完成其性能分析。结果表明,在低信噪比的情况下, RS +卷积交织器级联可以满足一般通信的要求,是一种高效的纠错码,在工程中具有较高的实用价值。-Aiming at the data transmission in the normal communication
comm_eg
- Process a binary data stream using a communication system that consists of a baseband modulator, channel, and demodulator. Compute the system s bit error rate (BER).-Process a binary data stream using a communication system that consists of
v06_03_dem_2up_arrange
- 一个OFDM符号128个有效符号，插入128个虚拟子载波 符号率（即有效数据率）fsymbol，而发送速率（需要包括虚拟子载波）2fsymbol 输入的数据需要2倍的发送数据率，以便进行内插，实现位定时跟踪，即4倍fsymbol采样率的调制信号 OFDM symbol Nfft=128 points 一个OFDM符号数据点 Nfft*2 = 256 ， Guard Interval点 ＝Ng*2=64 -128 of an OFDM symbol of a val
code-matlab
- 利用SIMULINK和M函数相结合的方式仿真BFSK 调制在多路径瑞丽衰落信道中的传输性能。其中 source产生速率为10Kbit/s、帧长度为1秒的二进制数据源data,并且通过BFSK产生调制信号。BFSK调制的频率间隔为24KHz, BPSK调制符号的样点数为2，调制信号通过多径瑞利衰落信道，移动终端相对运动速率为40公里/小时，接收端对信号进行解调，并把解调后的信号和原始数据信号相比较计算误比特率。最后Sink模块根据SNR与误比特率的关系绘制曲线。-And M functions u
Bit-Error-Rate-in-OFDM
- This program describes that how the binary data is transmitted by dividing data into frames. it also analyse the Bit Error rate by 16 QAM method and viterbi decoding method.
ofdm_2
- OFDM仿真包括信号源,卷积码编码，交织，qpsk调制，IFFT，组帧，上采样，通过FIR滤波器 通过高斯信道，再经过低通FIR滤波器，下采样，拆帧，FFT，qpsk解调，接收数据；计算误比特率-OFDM simulation including the signal source, sampling convolutional encoding, interleaving, QPSK modulation, IFFT, frame,, through the FIR filter throu