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wigner1
- 设采样频率为1Hz，对于淹没在复高斯白噪声中的信噪比为 的两个复LFM信号，采用子带带宽为0.1Hz的升余弦滤波器，共9个子带滤波器构成的滤波器组，时间窗为窗长为256的矩形窗，进行仿真-based sampling frequency of 1Hz. For drowned in the complex Gaussian white noise to the signal-to-noise ratio of 2 Minute LFM, using sub-band bandwidth of 0
modulationshaped
- 基带数字信号通过成形滤波（选用升余弦滚降函数）然后进行载波调制
signal
- 随机信号处理的仿真，一个余弦信号加高斯白噪声，用自相关函数恢复。-Random signal processing simulation, a cosine signal plus Gaussian white noise with autocorrelation function recovery.
final4
- 升余弦信号传输的 曲线，升余弦滚降 ，取样时间无偏差，但信道是多径信道-Raised Cosine signal transmission of the curve, or cosine roll-off, sampling time deviation, but the channel is a multi-path channel
work
- 通过用正余弦表示周期信号,来计算信号的功率,能量。还有几个plot实例-calculate the power of signal by derived into sinewave and cosine wave.
DSP
- 【摘 要】为了减少集成电路硬件复杂度，针对QAM 调制软件实现速度慢的问题，在分析MQAM 调制原理的基础上，采用 直接频率合成实现正余弦信号及无时延改进的滤波器编程方法，提出一种快速实现MQAM 调制算法的软件编程思想，并以 TMS320C55X 为平台[1，4]，将MQAM 调制算法进行了C 编程实现。结果表明：该编程方法能快速产生MQAM 调制信号。 【关键词】多电平正交幅度调制；脉冲成形滤波器；直接频率合成；数字信号处理-【Abstract】 In order to redu
Preemphasis
- 傅里叶变换能将满足一定条件的某个函数表示成三角函数（正弦和/或余弦函数）或者它们的积分的线性组合。利用傅里叶变换可对语音信号消噪。-ourier transform to meet certain conditions can be expressed as a function of trigonometric functions (sine and/or cosine functions), or their integral linear combination. Fourier tran
cos
- 余弦波生成C语言代码，用于信号发生器设计中。-this is a function of cos singnl.
cepinji
- 能够测量一定范围的信号频率，方波，正余弦信号。-Can measure a range of signal frequency, square wave, sine and cosine signals.
Canon
- matlab模仿的卡农音频信号,通过正弦信号和余弦信号来处理，可以看到matlab处理音频信号的强大功能-Matlab imitation XLR audio signal by the sine signal and cosine signal processing, you can see a strong function of matlab to process audio signals
cost
- 余弦信号发生器 在QUARTUS上生成余弦波 用于产生跟正弦正交的信号-Cosine signal generator cosine wave is used to produce with sinusoidal quadrature signal generated in the Quartus on
powerpu_shiyan
- 2个余弦信号和一个随机信号相加的功率谱比较-2 cosine signal and a random signal is the sum of the power spectra for
freq_k
- 正弦信号，余弦信号和三角波信号发生器,并且可以调幅度-Sine signal and cosine signal and the triangular wave signal generator
m-xulie
- 根据多项式产生m序列，并求它的自相关，产生m序列矩形信号和升余弦信号，并求它们的自相关。-According polynomial m sequence generation, and seek its autocorrelation sequence generated m rectangular signal and cosine signals and find their autocorrelation.
spectrumanalysiswith
- 以余弦信号为例，使用matlab分析各类信号频谱分析-spectrum analysis of time signal with matlab cos signal is given example
DSB_AM
- 双边幅度调制与解调 对频率为30Hz的余弦信号进行双边带幅度调制，载波频率为300Hz，并采用相干解调法实现解调-Bilateral amplitude modulation and demodulation cosine signal of 30Hz frequency double sideband amplitude modulation, carrier frequency is 300Hz, and the use of law to achieve coherent demo
DDS
- 基于DDS算法的正余弦信号发生器的FPGA实现-Based on DDS Algorithm cosine signal generator FPGA
1
- 基于傅里叶级数的信号分解编写一个matlab函数，参数有：脉高、脉宽、余弦信号项数。该函数使用指定项数的余弦信号来逼近（合成）指定的矩形脉冲信号，计算并返回有限项逼近时合成波形与实际矩形脉冲信号的均方误差值。-Based on Fourier series of signal decomposition write a matlab function, the parameters are: pulse height, width, number of items cosine signal.
DDS
- DDS的字长决定了正弦/余弦基准信号样点的个数和所产生频率信号的量化精度。 最小频率间隔决定了DDS所能产生信号的最小频率。DDS所产生信号的频率为最小频率间隔的整数倍。(The word length of the DDS determines the number of sample points of the sine / cosine reference signal and the quantization accuracy of the generated frequency si
数字2
- 三角波和反三角波序列的时域和FFT幅频特性，余弦信号傅里叶变换，比较DFT和FFT程序的运行时间(The time-domain and FFT amplitude frequency characteristics of the triangular and anti triangular wave sequences, cosine signal Fu Liye transform, and the running time of DFT and FFT programs are compa