This paper analyses the effect of wide-band noise on the accuracy of generic sine-wave frequency and amplitude estimators based on Discrete Fourier Transform (DFT) samples located closely to the spectrum peak. A cosine window is adopted to reduce the influence on the estimated parameters of ...
The Sine Wave block generates a multichannel real or complex sinusoidal signal, with independent amplitude, frequency, and phase in each output channel. The block supports floating point and signed fixed-point data types. The block generates a real sinusoidal signal when you set the Output complexit...
TheSine Waveblock generates a multichannel real or complex sinusoidal signal, with independent amplitude, frequency, and phase in each output channel. The block supports floating point and signed fixed-point data types. The block generates a real sinusoidal signal when you set theOutput complexitypara...
; 双击SineWave元件,弹出Source BlockParameters,在Amplitude一栏输入10000(我这里输一个比较大的数,方便之后观察波形),Frequency一栏输入50...,Type选择Fixed-step,Solver选择ode4 (Runge-Kutta),Fixed-stepsize(fundamental sample time)取0.000250,其他选项取 ...
The function sinfap.m evaluates frequency, amplitude, phase and mean value of a uniformly sampled harmonic signal x(t) = a.sin(2.pi.f.t + phi) + x_m It uses a vector version of 3-point formulae derived by application of Z-transform (see [1]) for finding amplitude and frequency...
You may want to directly modify the frequency and amplitude of a SineWave. We do provide two alternative functions,SineWave.set_frequency(hertz)andSineWave.set_amplitude(percent), however we suggest that you useSineWave.set_pitch(pitch)andSineWave.set_volume(decibels)instead. ...
The signal-to-noise ratio (SNR) of a digital-to-analog converter is tested by driving the DUT with a digital replica of a sine wave, with a known frequency and amplitude. The analog output of the device is captured as digital data by the digitizer and analyzed in the frequency domain by...
Make a signal which is 3 seconds long. The frequency is 50 Hz. The amplitude is 230 V rms (i.e. peak amplitude=325 V). The peak amplitude dips to 275 V for 1 second in the middle of the 3 second long signal.I
Since the fundamental frequency can be coded using ≈ 7 bits and the voicing measure can be coded using ≈ 3 bits, then the possibility exists for good speech quality at low data rates provided the sine-wave amplitudes can be coded efficiently. In this paper the zero-phase, harmonic ...
It provides idea on the performance of sine-wave generators where in it is often required with accurate amplitude and frequency and a low total harmonic distortion (THD). A diagram of circuit which uses three integrated circuits (IC) is presented where in sine wave is used synchronized with ...