## Forums Search for: Radar

## kalman filter radar tracker

inI've got a radar tracker which contains 3 Kalman filters. The first filter (which I term the range filter) is for range, velocity, and...

I've got a radar tracker which contains 3 Kalman filters. The first filter (which I term the range filter) is for range, velocity, and acceleration, with range and velocity being measured. The range filter performs nicely. I'm using a plant noise model from Blackman's multiple target tracking book. The second filter is for azimuth angle, azimuth angle rate, and azimuth angle acceleration...

## R&S AMIQ

inI have an AMIQ I got for my amature radar project. Not sure if anyone else has one of these. For the price, it is a great two channel 105MSPS...

I have an AMIQ I got for my amature radar project. Not sure if anyone else has one of these. For the price, it is a great two channel 105MSPS ARB. The R&S GUI really was a piece of junk if you wanted to import custom waveforms so I wrote my own for Windows. If anyone has a need for it you can just shoot me an email. Might save a few hours of your own time atleast. Mark

## FMCW Radar help required.

inHi All, For an FMCW Rdar I plan to provide a 100us ramp to sweep 300MHz . I get an (IF) of 40Khz for a distance of 1meter . My Gunnplexer...

Hi All, For an FMCW Rdar I plan to provide a 100us ramp to sweep 300MHz . I get an (IF) of 40Khz for a distance of 1meter . My Gunnplexer datasheet shows an (IF) band width of no more than 5000Hz . Then how is it possible to capture 40Khz (IF) ? . Charles

## CPM

inI was trying to design a bandlimited pseudorandom signal with constant envelope for radar/sonar and like applications. I.e. frequency...

I was trying to design a bandlimited pseudorandom signal with constant envelope for radar/sonar and like applications. I.e. frequency modulation with smoothed transitions. The problem is closely related to CPM for data transmission, however the optimization criteria are not quite the same. In particular, it turns out that optimal value for normalized deviation is higher then 0.5, optim...

## AR Extrapolation

inHi Cris, > I am doing some research regarding the High-Resolution methods, for > applications in Automotive Radar, and before I compose my...

Hi Cris, > I am doing some research regarding the High-Resolution methods, for > applications in Automotive Radar, and before I compose my own C codes I am > playing with the Matlab intrinsic functions. That's a very wise way of working. Be aware, though, that some neat functionality you probably would want in your own code, like order estimation, usually lacks in the matlab codes.

## Orthogonal waveforms/pulses

inHi all, as I understand one often uses LFM or CW pulses in connection with radar/SAR systems. My question is, are there any procedures on how...

Hi all, as I understand one often uses LFM or CW pulses in connection with radar/SAR systems. My question is, are there any procedures on how to design several of these pulses who are all orthogonal to each others ? Or is this a more difficult issue and one often relies on pulses where the corss-correlation is low ? References will also be appreciated. Thanks.

## FMCW circuit

i am on a entry level of frequency modulated continous-wave(FMCW) radar. i want to begin with some classical designs of the FMCW circuit. where...

i am on a entry level of frequency modulated continous-wave(FMCW) radar. i want to begin with some classical designs of the FMCW circuit. where can i download some design of the FMCW circuit? pswd

## SAR and pulse variations

inHi, I have a question regarding radar/SAR and pulse variations / multifrequency signals. Are there any specific advantages of using pulse...

Hi, I have a question regarding radar/SAR and pulse variations / multifrequency signals. Are there any specific advantages of using pulse diversity in range measurments, i.e. to illuminate the same reflectors using for example two different pulses ? Or there is little to gain from that ? Any reference will be highly appreciated. Thanks.

## OT: Advise for RF software projects

inSo I finally decided on a fun project to work on after reading about the MIT 2.4GHz synthetic aperture radar project in IEEE spectrum. ...

So I finally decided on a fun project to work on after reading about the MIT 2.4GHz synthetic aperture radar project in IEEE spectrum. I couldn't really get my heart into working on an AF SDR project. My whole idea was really about DSP, and I am most comfortable with stimulus-response type measurements and algorithms. Does anyone have any other resources I should look into? So far I h...

## BPSK one-bit

inDear group, I would like to implement a BPSK demodulator with one-bit signal processing. I will use an Hard limiting IF and 1-bit A/D...

Dear group, I would like to implement a BPSK demodulator with one-bit signal processing. I will use an Hard limiting IF and 1-bit A/D converter. It is for coherent RADAR, so I have the clk. I can sampling at maximum for time BW. Any idea? Thank you. Best regards. -- -- *Claudio Muzzini*Mob. +39 3484321716 *Perfekt ist nicht genug.*

## SNR estimation

inI need to estimate the SNR (or, even better, the actual signal and noise powers separately) at the output of a matched filter. I have seen...

I need to estimate the SNR (or, even better, the actual signal and noise powers separately) at the output of a matched filter. I have seen various implementations for communications systems using maximum likelihood or based on particular types of signal coding. However my application is a radar type one - the signal transmitted is known (e.g. chirp or polyphase pulse), but after the matche...

## multipath over sea for radar

inhi i am trying to simulate a multipath environment over sea . am i correct in assuming that my echo at low grazing angles will comprise of four...

hi i am trying to simulate a multipath environment over sea . am i correct in assuming that my echo at low grazing angles will comprise of four paths ( combinations of the direct and surface bounced path). A lot of litearture suggests that only two paths are sufficient where as a few talk about using all the four. is there any staistical model available for reference. is there any method to e...

## Standard literature for Sonar Signal Processing

inHello, I am one of the more passive users of the group. Because of that I know some people here worked in the sonar field. I want to know...

Hello, I am one of the more passive users of the group. Because of that I know some people here worked in the sonar field. I want to know what standard textbooks are there that someone should have taken a look at who works in that field? ( I have some experience in radar and lidar data processing so I am not looking for some basic filter theory stuff but my background in acoustics ...

## Re: How to get envelope from AM signal without phase shift

inOn Mar 29, 12:18=A0pm, "WWalker" wrote: > Jerry, > > The speed of light is a corner stone in physics and if it is not a consta= nt > ...

On Mar 29, 12:18=A0pm, "WWalker" wrote: > Jerry, > > The speed of light is a corner stone in physics and if it is not a consta= nt > then many of our theories in physics will be affected. There may be direc= t > practical uses as well, but I just guessing: improving accuracy of high > speed doppler radar, speeding up communication to spacecraft where

## Shifting data before FFT

inI'm doing some DSP for radar applications. My background in DSP is limited, so I'm trying to get up to speed. Performing a circular rotation...

I'm doing some DSP for radar applications. My background in DSP is limited, so I'm trying to get up to speed. Performing a circular rotation to move the beginning of data to the center of the dataset before a FFT and then rotating back after seems to be routine (almost taken for granted). Can anyone explain the benefit of this when compared to just a straight FFT of the data? Thank y...

## circular convolution

inI'm perusing the web and I suspect worse case I'll grab a few texts to further assist me, nonetheless, given two sequences ( radar application )...

I'm perusing the web and I suspect worse case I'll grab a few texts to further assist me, nonetheless, given two sequences ( radar application ) - reference and receive of length 1024. It was explained to me that the for linear convolution, I'll pad the sequences with zeros, then compute the FFTs. For circular convolution there's no need for padding. None of this makes sense to me as a re...

## From a friend:

incame across this: http://www.amazon.com/gp/reader/1584881828/102-1824486-2888928 There's an annoying practice for engineering books where...

came across this: http://www.amazon.com/gp/reader/1584881828/102-1824486-2888928 There's an annoying practice for engineering books where editors will pick an arbitrary graph from the book, and use it for cover art. In most cases, it can look good, and is the rough equivalent of flashy cover art for SF titles... Unfortunately, one of my radar systems books has a 2-d ambiguity plot on ...

## Looking For URL's To Learn About Phased Array Radars

Hello, I've taken a lot of non-credit courses on radar, but I find that I know almost nothing about Phased Array radars. Where on the...

Hello, I've taken a lot of non-credit courses on radar, but I find that I know almost nothing about Phased Array radars. Where on the Internet is a good place to learn about them? (I want the failrly advanced technical information and novice's practical information.) Thank you,

## Looking For URL's To Learn About Phased Array Radars

inHello, I've taken a lot of non-credit courses on radar, but I find that I know almost nothing about Phased Array radars. Where on the...

Hello, I've taken a lot of non-credit courses on radar, but I find that I know almost nothing about Phased Array radars. Where on the Internet is a good place to learn about them? (I would like fairly advanced technical information as well as pratical information for a novice.) Thank you,

## DSP Platform Suggestion

inHi Many people have probably asked this type of question, but I was wondering if anyone with good practical knowledge of DSP would help me...

Hi Many people have probably asked this type of question, but I was wondering if anyone with good practical knowledge of DSP would help me choose an appropriate platform for real-time DSP. My project is very simple. I receive an RF signal from a radar. This received signal along with the transmitted signal are put into a mixer, which as we know gives two separate signals with frequencies f1...