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FIR taps for fractional delay [4 articles]

I have created a fractional delay line with resolution 1/L of the input sample time by interpolating a lowpass FIR prototype by L and extracting subfilters by striding through the interpolated respo...

Should the normal SINE and Zero padded SINE curves be the same for fft output? [25 articles]

All This might have been discussed multiple times. However, I am new comer to the site. My question is given below. I wanted to put plots but could not find the way to do it. I took a sin...

SPI and I2S on SHARC ADSP-21369 [3 articles]

Hello world, I am putting together my first embedded DSP processor with an FPGA and I am wondering if there are specific pins I should use in the DPI for SPI (i will need two seperate SPI buses, ...

band pass filter design on composite sinusoidal signals of 1 khz, 2khz and 3 khz [3 articles]

hi, i have 3 sinusoidal signals of frequency 1Khz, 2khz and 3 khz added up to form a composite signal. i designed one bandpass filter centered using FDATool in matlab. i tried to give pass band ...

kalman filter and object tracking [5 articles]

hi there i working on an object tracking project by kalman filter, assume that there is a moving object, as i studied before i thought 2-degree model (a*x^2+b*x+c) is useful but in simulation result ...

Spurious spectrum and length of the waveform [4 articles]

Hello All, I created a sine wave(frequency f) with only 2 cycles, converted(quantized) the data to 8 bit and sent the data to a DAC. The data was repeated (as in a circular buffer) and observed t...

IF sampling ADC [12 articles]

Hi there I am going through the data sheet for AD9445. It is configured to be used in the LVDS mode. The output signals are as such: 14 bit data values(D0+,D0-,.........D13+,D13-) OR- and ...

Some questions about radix-4 FFT algorithm using fixed-point arithmetic [6 articles]

Hello all, I'm very new to signal processing and want to learn to implement some basic FFT algorithms in hardware. First, I coded up the radix-4 Cooley- Tukey FFT algorithm in Matlab and it is wo...

Evaluation Board [14 articles]

Hi, I'm looking to buy a DSP evaluation board to play around with in my sparetime. I prefer fixed-point DSPs, but floating-point is also ok. Audio sampling rate should be minimum 24kHz. T...

counterphase detection in stereo audio [17 articles]

Hi folks, I'm going to develop a quality control application that inspects recently imported audio files for a number of checks. One of them is the detection of counterphase fragments in the file. ...