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1000 Threads found on edaboard.com: Chirp Matlab
hi everybody, how can i found the maximum and the minimum frequencies that will be heard from this chirp matlab code fs = 7000; dt = 1/fs; dur = 1.8; t = 0:dt:dur; psi = 2*pi*(100+200*t+500*t.*t); x=real(7.7*exp(j*psi)); sound(x,fs); thanks in advance for any help.
hi iam engineering fianl year student please help me in my project i want to generate upchirp and down chirp signal in matlab without using inbuilt matlab function "chirp" i want to write the code to do that can anyone help me please..
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, the main use of chirp signal is for pulse compression in radars. Regards.
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 (...)
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? Ho
I would use a DDS. Here is a description of the general technique, however it doesn't give VHDL details: "Generate Digital chirp Signals With DDS" by Bar-Giora Goldberg
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
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 ?
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
Can anyone please tell me what I need to do to enable me make MAPLAB plot the following outputs against time i.e. 1. Here I am differentiating the system step response, to show that this give the impulse response, but how do I make matlab do ?plot(t,x)? where t is 0 to 8ms and x is the step response differentiated. clear num=[0 0 20210
I am running SuperNEC with matlab 6.1. When I create a structure expecially a more complex one like a cone or a parabola, it takes a very long time to make the structure. It almost takes longer than to run the simulation. Has anybody else experienced this as well? Is this normal?
hi all is there any software which convert matlab code to vhdl? how can i get it? best regards baa110
Hi matlab R12 Toolboxes Image_Processing_Toolbox.exe 20-mar-2002 19:02 48.4M matlab.exe 20-mar-2002 16:41 49.0M matlab_Compiler.exe 20-mar-2002 18:47 12.2M Neural_Network_Toolbox.exe 20-mar-2002 18:49 7.1M (...)
Hi "matlab 5 User contributed M-Files" 1. -> t tnx
i have to make this 2 programs, if anyone could help me out, i would apreciate it: 1- Write a matlab program to compute the first L samples of the inverse of a rational z-transform where the value of L is provided by the user through the command input. Using this program, compute and plot the first 50 samples of of the inverse of G(z) from Eq. 3.3
femlab 2.2 works with matlab 6.5?
read mpeg from matlab..works
Dear friends: Is it possible to use matlab code (or code translation) in a development under Delphi or Visual basic?. How can do it , what's the better way? I understand that matlab provides a compiler to C, C++ code, but how can I link this code with a delphi application? Thanks great peopple Nebisman
Hi matlab R12 !! Toolboxs for D/L 1. -> t tnx
matlab Program in the book " RF Circuit Design Theory and Application " by R. Ludwig and P. Bretchko
I need to simulate the electromagnetics of a three phase transformer in matlab/Simulink. ANy thoughts? Git
Can someone explain how matlab can be used for DSP development? Is it possible to make a filter in matlab and magically implement that in hardware? - Jayson
Is the chirp-Z transform included in the fxt library in Linux?
HI... I need to simulate an ABS (antilock Braking system) in matlab. But i don't know how i can do it?? IF any body can send me any Books (PDF) or sites learn me about Simulation ABS in matlab, Or you Of course.... Thanks
HI... I need to simulate an ABS (antilock Braking system) in matlab. But i don't know how i can do it?? IF any body can send me any Books (PDF) or sites learn me about Simulation ABS in matlab, Or you Of course.... Thanks
I'm a beginner in FDTD programing. Anyone have a matlab code to solve the irregular grid problem?? THX
hai, pls explain how to convert matlab m file to c code bye
Anyone gets S-Parameter simulation script(matlab or perl etc) to do freq / time domain simulation?
Dear Friends, Please help me to get matlab code(.m) for the following analysis(just example)..... Need your help to get the codes/paper/thesis/project....Any parameters analysis(such as gain/impedance/return loss..etc..) Circular microstrip antenna/patch antenna Ring microstrip antenna Anular patch antenna.... Thanks in advance.. B
hi could anyone please tell me how to convert matlab m files into c code? thanks
hi anybody has matlab code or any program to plot radiation pattern of different types of antennas (dipole,...) both 3d and in the planes xy,yz,xz,... or any other plane thanks
Hi all, I wanna code a matlab program that calculates maximum gain for a given transistor S parameters and draws constant gain circles for a microwave amplifier. eg. for constant gain circle: GA=Gamax-1.5dB . Then after selecting some gammaS values on that circle, for each gammaS I'm gonna determine gammaL that lie on constant (VSWR)out=1.7 a
I have a data file of a signal I captured on my oscilloscope, the data contains time and voltage for each measurement. Is it possible to import this text file into matlab and create a DSP model that uses the data file as input and runs a filter algorithm on it and then somehow using SystemGenerator export that to a VHDL program and dump the whole f
Are there anybody have a 3D FDTD matlab code with PML ???
Dear Friends, Could you help me to get a matlab program to calculate a Green function for circular microstrip antenna??/ Anyone has experienced with matlab for Green function???? Anyone has experineced with matlab for simulation in circular/ring/dics microstrip/patch antenna??? Need the source code/ to work with this kind of (...)
In matlab is there a way to extract the frequency from a bode plot for a given magnitude? You can extract the magnitude for a given frequency, but I want it to be the other way around. Thanks
If I have E field and H field. How can I plot an antenna pattern? Anyone can provide a matlab code to do this ??
Such as Impedance vs Frequency Directivity pattern Elevation pattern Radiation impedance vs. wavelength Others
little matlab demo of fractional derivative..enjoy N=256; t=pi*/N; f=exp(-(t.^2)/(0.5)); f=f-mean(f); F=fftshift(fft(f)); figure(1);clf;set(gcf,'Renderer','zbuffer'); for n=0:0.1:4 Fn=(j*t).^n .* F; fn=ifft(fftshift(Fn));fn=fn/max(abs(fn));plot(real(fn)); text(20,1.0,sprintf('%0.2f',n)); grid on;axis( [0 2*N -1.
little matlab demo for fractional fft...enjoy N=64; t=2*pi/N*;c=1; for k=-N/2:N/2 B(c,:)=1/sqrt(N+1)*exp(-j*k*t);c=c+1;end; f=exp(-t.^2); f=f-min(f); f=f'; figure(1);clf;set(gcf,'Renderer','zbuffer'); for n=0:0.1:2.0 Bn=B^n;fn=abs(Bn*f);plot(fn,'b');hold on;plot(f,'r--');hold off; text(10,1.7,sprintf('%0.2f',n));
I am suffering from a painful problem with running matlab 6.x after I upgrade to RED-HAT LINUX 8.0. from 7.2. Problem1: I cannot run .m file under "command window". Whenever I do this way, matlab would be dead. Problem2: I cannot choose .m file from the file list. Whenever I try to pick the file that I want, matlab always reports "FILE (...)
Do any body know if the ISE can communicate some way with matlab .. i know that there is a tool can do it but iam not sure which one