搜索资源列表
duffingcheckfrequncy
- 利用duffing振子检测微弱信号频率的matlab程序。可以检测与周期策动力频率相差0.03之内的微弱信号频率。信噪比达到-68db-use Duffing oscillator frequency detection of weak signals in Matlab procedures. Can be detected with the cycle driven frequency difference of 0.03 within the weak signal frequency.
high-resolution-one-dimension
- 高分辨率要求系统具有大的带宽，瞬时带宽的增加必将提高系统对硬件的要求，本文采用方便灵活的步进频率波形信号。脉间频率步进波形通过子脉冲载频的步进变化来获得大的有效带宽，使成像具有高分辨率，采用加窗和补零方法提高信噪比，但该信号对目标径向速度非常敏感。采用补零方法提高距离取样分辨率，使距离像细化，并用公式说明了补零只能提高距离取样分辨率，并不能改变频率步进信号的距离分辨能力。该信号波形对目标径向速度的敏感，使目标能量分散到邻近的距离单元造成距离分辨率下降，如果不事先进行速度补偿，直接对回波信号进行逆
CDMAgonglvkongzhiMATLABfangzhen
- 【摘 要】论文总结了ＣＤＭＡ通信系统功率控制的目的和方法，重点介绍了基于信噪比的功率控制算法，最后利用 ＭＡＴＬＡＢ工具，对开闭环结合的功率控制方法进行了仿真，给出了实验结果。 【关键词】 ＣＤＭＡ 功率控制 ＭＡＴＬＡＢ仿真 -Abstract paper summarizes the CDMA system power control method and the objective, focus on the signal-to-noise ratio on the
YUVPSNR
- PSNR 用来计算峰值信噪比的函数。可以输入两个yuv文件得出平均值-PSNR peak signal-to-noise ratio used to calculate the function. 2 can import documents obtained average yuv
peaches
- 一段语音，分别在白噪声、粉色噪声、工厂噪声、冲击噪声和信噪比变化很大的语音，用于检验语音端点、语音增强的方法的对与错。-a voice, in white noise, pink noise, factory noise, the impact of noise and signal-to-noise ratio of the great changes of voice, used to test the voice endpoint, speech enhancement of the ri
tidufilter
- 梯度倒系数滤波,在小目标检测算法中,用来实现背景抑制,提高目标的信噪比.-reversing gradient filter coefficients in small target detection algorithm, which can be used for background suppression, the goal of improving the signal-to-noise ratio.
OFDMprogramcode
- 给出了几种OFDM仿真的源程序，包括传输误码率与信噪比的关系图等。-given several OFDM simulation of the source, including transmission error rate and SNR map of the relationship.
freqhoppsprdspctrm
- 已知载波频率的扩频通讯MATLAB程序，通过扩展频率实现低信噪比的传输 -known carrier frequency of spread spectrum communication MATLAB program, through the expansion of low-frequency signal-to-noise ratio transmission
codefile
- 对图像进行二维离散小波变换, 变换级数大于等于3级, 并进行重构, 最后计算重构图像的峰值信噪比(PSNR).-images of two-dimensional discrete wavelet transform, transform Series is greater than or equal to 3, and reconstruction, Image Reconstruction final calculation of the peak signal-to-noise rati
awg
- 模拟高斯信道，画出误码率与信噪比的关系曲线-simulation Gaussian Channel paint BER and the signal-to-noise ratio curve
ds_ss
- 这个是直接序列扩频通信系统在不同信噪比下抑制正弦干扰的仿真的主程序和子程序-This is a direct sequence spread spectrum communication system with different signal-to-noise ratio under sinusoidal interference suppression of the main program and Simulation Subroutine
xiaoboyuyinduandianjianxe
- 语音端点检测是语音识别中至关重要的技术。无论军用还是民用，语音端点检测都有着广泛的应用。在低信噪比的环境中进行精确的端点检测比较困难，尤其是在无声段或者发音前后-voice activity detection is critical speech recognition technologies. Whether military or civilian, voice endpoint detection have broad application. Low signal-to-noise
all3
- 一个OFDM系统的仿真程序,可看出信噪比与误码率之间的关系.-an OFDM system simulation program, we can see the signal-to-noise ratio and bit error rate of the relations between them.
OFDMBER
- 有关于OFDM在不同信噪比下的误比特率，大家可以看看啊-on OFDM different signal-to-noise ratio in the bit error rate, we can see ah
SNR_vs
- 实现对数压缩PCM和线性PCM的信噪比特性曲线的仿真，非均匀量化级数为n=8和n=6。-realization of a number of PCM compressed and linear PCM signal-to-noise ratio of the characteristic curve simulation, non-uniform quantization Series n = 8 and n = 6.
recover
- DWT域的水印提取，matlab 以及信噪比分析-DWT watermark extraction, and signal-to-noise ratio analysis Matlab
BPSKerr_rate
- BPSK平坦瑞利信道下的最大信噪比合并仿真的matlab程序，希望大家下载-BPSK Rayleigh flat channel with the greatest signal-to-noise ratio of Matlab simulation procedures in the hope that you download
matlabqpskwhitegaussemulator
- QPSK在加性高斯白噪声环境下，信噪比和误码率的仿真。 先产生一个四组符号的序列，再将该序列映射到对应的相位上。用相应的函数产生均值为零、方差为δ2的加性高斯噪声。 -QPSK the additive white Gaussian noise environment, and the signal-to-noise ratio of the simulation. First group have a four symbols of sequence, then this seque
OFDM_emluator
- ofdm仿真器，外部功能。输入发射天线数和接收天线数，输出信噪比、误比特率-ofdm simulator, the external function. Importation fired several antennas and receiving antennas few, and the output signal-to-noise ratio, bit error rate
Turboequalization
- turbo 均衡的经典文献matlab实现，经过几次迭代得到信噪比与误码率之间的曲线-turbo balanced classic literature Matlab realized, After several iterative be SNR and bit error rate between the curve