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QT开发的LINUX操作系统上运行的GPS软件,可通过它观察到定位星的信息,如已定位卫星的星号和信噪比等-QT development of LINUX operating system running on the GPS software, it can be observed by the satellite positioning of information, such as positioning of the satellite number and signal to noise
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用过采样和求均值技术提高模数转换器的分辨率.pdf-----针对目前单片机内嵌的模/数转换器的分辨率太低,而外接高分辨率成本又太高的情况,提出了用“过采样和求均值”的技术来使在有用的测量频带内的信噪比得到改善,从而提高测量的分辨.
率。并利用 60 - 7 0 /对其结论进行仿真,且在单片机上予以实现,结果表明测量分辨率明显提高。-Sampling and averaging techniques used to improve the resolution of ADC. Pdf-----
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8通道12位串行A/D转换器。其主要性能特征包括:A/D转换时间较快(9.5μs)(100k) 功耗较低(最大50 mW,体眠状态下75μW) 信噪比较高(大于70 dB) 总谐波失真小(不大于-78 dB) 内置跟踪/保持放大器,片上参考电压 具有高速、灵活的串行接口等。-8-Channel 12-Bit Serial A/D converter. Its main performance characteristics include: A/D conversion time fast (9
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/* DEscr iptION */
/* Measuring the signal to noise ratio of an audio signal using the */
/* TMS320C6416 DSK. Uses a sampling rate of 48000 Hz (48 kHz). */
/* */
/* Takes an input from a microphone or from a CD player and feeds */
/* straig
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Abstract—2×2 unitary precoding based on receiver feedback
is applied alongside spatial multiplexing at the base station in
HSDPA (D-TxAA) when the mobile terminal supports MIMO
transmissios [1]. This precoding will influence achievable sumrate
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该matlab程序实现了计算信号信噪比的功能-Matlab program to calculate the signal to noise ratio to achieve the function of
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TLV320AIC23(以下简称AIC23)是TI推出的一款高性能的立体声音频Codec芯片,内置耳机输出放大器,支持MIC和LINE IN两种输入方式(二选一),且对输入和输出都具有可编程增益调节。AIC23的模数转换(ADCs)和数模转换(DACs)部件高度集成在芯片内部,采用了先进的Sigma-delta过采样技术,可以在8K到96K的频率范围内提供16bit、20bit、24bit和32bit的采样,ADC和DAC的输出信噪比分别可以达到90dB和100dB。与此同时,AIC23还具有很
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用一个2阶的AR模型产生一平稳的随机过程s(n)。
其中, , , 可任意选定。
再产生一方差为 的白噪声 。接收信号为
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要求对接收信号进行维纳滤波,输出信号为 。
1, 给定维纳滤波器的长度M,考察代价和函数与SNR之间的关系。
2, 给定SNR,考察代价函数与信噪比之间的关系。
3, 做一步预测,代价函数随滤波器的长度和信噪比的变化关系。
-With a 2-order AR model to generate a stationary rand
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1 采用正弦波,方波进行同步调制,实现调制信号、已调信号、解调信号的波形、频谱以及解调器输入输出信噪比的关系。
2 采用Verilog语言编写有符号的五位乘法器
3 实现数字与模拟调制-A sine wave, square wave synchronous modulation to achieve the modulation signal, the modulated signal, the demodulated signal waveform, spectrum and sig
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基于改进谱减法的语音增强,通过改进和传统的比较得出信噪比-Based on improved spectral subtraction speech enhancement, derived signal to noise ratio through improved and traditional
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WAV Speech Enhancer can be used to improve the signal to noise ratio of bad quality speech recordings: - Dynamic expansion - Pink noise attenuation - Low frequency noise (50-60Hz) suppression-WAV Speech Enhancer can be used to improve the signal to n
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窄带信号単快拍测向 通过平滑 提高信噪比 -Narrowband signals and single-snapshot direction finding
Improve the signal to noise ratio by smoothing
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雷达中的信号相干积累,使得信号的信噪比提升N倍。-Coherent integration radar signal, so the signal to noise ratio enhancement N times.
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根据小波去噪的原理及特点,提出了用FPGA实现小波实时信号处理的方法。实验结果证明采用FPGA实现小波信号处理能在低信噪比的情况下有效去除噪声,同时能够满足信号处理系统的实时性要求。-According to the principles and characteristics of wavelet denoising, a method using wavelet FPGA real-time signal processing. Experimental results show that
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若输入信道的各符号等概出现,求该信道 的互信息量 • 画出不同信噪比下的互信息量变化的曲线, 以M为参数,画一簇曲线(其中加上一条 AWGN信道容量曲线作对比) • 调整函数a=f(x),使当x=si时,a=iA‐b,b也为 一实常数,在A和 不变的情况下,互信息 量随b的变化情况是什么趋势? • b的取值对互信息量随信噪比的变化曲线的 影响-If the input channel of the symbols, such as concept, f
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Based on multi-document image obtained combining technique, Thermonuclear using weighting factors ML estimation method can be a good signal to noise ratio.
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Optimization class contains several simple sample programs, MIMO OFDM matlab simulation, Includes the modulation, demodulation, signal to noise ratio calculation.
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Car class-based truck driver trying to Matlab program, ML estimation method can be a good signal to noise ratio, Minimum mean square error (MMSE) algorithm.
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The final weight matrix is ??the filter coefficient, Including the final calculation of the compressed image peak signal to noise ratio and compression of the source, Space target recognition algorithm using PM.
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ML estimation method can be a good signal to noise ratio, Complete class-based image processing, contains all of the source code, auto image, Through repeated training CEyjPrGlate have higher recognition rate.
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