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21 Threads found on edaboard.com: Chirp Matlab
Does anyone can give me clear description about chirp? or any paper, ...etc.
Search your matlab installation directory for file chirp.m. It contains the source code of the chirp function.
i want code for simple up and down chirp signals and i had tried it from the matlab my doubt iis that what we can infer from the dft of chirp signal and how can we know chirp rate from dft also how to differentiate upand down chirp from fft plz help this is main part of my project so plz do help thanks in (...)
Why dont you use the matlab help? It pretty simple I think. Generate the chirp signal then take its FFT and then plot it t = 0:0.001:2; % 2 secs @ 1kHz sample rate y = chirp(t,0,1,150); f=fft(y); plot(f)
Hi, Iam trying to do some analysis for a redar system that uses Linear chirp modulation. I have a problem mixing the Tx and Rx signal then LPF. RX is a delayed version of the Tx. Normally after mixing (muliplying Tx and Rx) i dont get the low freq part!!! I tried matlab Help but i cannot get it! Any help Please?
Hi frendz I have to write VHDL code for a chirp generator which outputs a chirp sweeping from 39 Khz to 41 Khz in 20 cycles... any idea how shall I do it. my system clock is 100 MHz Plz help me
Hi all i have a data file which is the op of a filter whose input is a chirp signal these are 16 bit samples now i need to import this data file into matlab or scilab as an object and plot it to get the filter response.How do i do it??? thanks in advance regards srinivas
Where can I find any information regarding chirp spread spectrum algorithm? Is there any book/notes that i can read on improving my knowledge on chirp spread spectrum? Thanks in advance, Allyson
I am trying to emulate the output from a Gammatone filter for a hyperbolic chirp as input. The matlab script is shown below. I have generated a hyperbolic chirp with frequency sweeping from 100kHz to 20kHz in 1ms. And the Gamma tone filter has center frequency of 50kHz and bandwidth of 20kHz. This means, theoretically the filter output (...)
help chirp chirp Swept-frequency cosine generator. Y = chirp(T,F0,T1,F1) generates samples of a linear swept-frequency signal at the time instances defined in array T. The instantaneous frequency at time 0 is F0 Hertz. The instantaneous frequency F1 is achieved at time T1. By default, F0=0, T1=1, and F1=100. (...)
Hi everyone, i have to split 4 port S-Parameters (*.s4p) into two mirror symmetrical parts with matlab. I read some papers from Agilent about this topic, but i couldn't find any useful information. S21(or S12) of splitted S-Parameters are the half of measured data. But problem is reflection coefficients. For reflection coefficients: At th
Hi I am trying to excite CST with chirp signal. Is there any one explain me how can I import my matlab chirp file into CST as an excitation signal. thanks a lot
Hi.. I am new to matlab simulink n I need this help for my project.. I generated a chirp n added noise (random) n when I xcorr in simulink I get a single peak.. But when I use the same xcorr for two chirps seperated by some distance I get three peaks instead of two.. Can anyone tell me what wrong am I doing? Thank u in advance
exp(j*psi) = exp(j*2*pi*100) * exp(j*2*pi*t*(200+500*t)) First multiplier is constant and it is related to amplitude of signal together with 7.7 Second is chirp wave. Argument 2*pi*f*t = 2*pi*t*(200+500*t)) So f = 200 + 500*t So min is 200 and max is 500*dur.
How could i generate upchirp and downchirp without using inbuilt function "chirp" in matlab ? i want to write a code for this. could any one tell me how to do this ?
Your filter takes continuous time data. chirp is from continuous library. Replase it with digital source or insert Zero-Order Hold unit at fiter input with 1/800 sample time.
If there should not be any signal parameters manipulaton, just continuous wave, then use chirp - linear FM. - - - Updated - - - If there should not be any signal parameters manipulaton, just continuous wave, then use chirp - linear FM.
Hi, I have post this question to matlab but no one answer :(. Hope someone help me in here. I have tried to plot the chirp signal from 20MHz to 70MHz in time domain and frequency domain. The target time and sweep time is set to 3 ms. Normally I see slew rate =1s, dont know why?. Sampling time = 140 us and samples per frame = 4096. The output of c
Is the chirp-Z transform included in the fxt library in Linux?
I'm a greenhand.Synthetic aperture radar image prosessing about raw data with range-doppler or chirp-scaling algorithms.Only matlab code needed.Thanks! If some one can offer help,please post it in this board or send e-mail to: naoda2055@hotmail.com.
Hi I need to extract the 2nd harmonic from a waveform. I think I need to use correlation but I have no idea where to start. Can anyone provide some matlab help. The experiment is to fire a chirp signal at a bubble and measure the response from the bubble to see if it resonates. I have a hydrophone to collect the received data. I've got the da