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7 votes
1 answer
783 views

MUSIC Algorithm for Direction of Arrival (DOA) in Acoustic Signals

I have seen multiple reviews of the MUSIC algorithm for the estimation of DOA. Most of those reviews consider a complex signal input with a complex steering vector. So, how do I implement this ...
Gideon Genadi Kogan's user avatar
4 votes
1 answer
299 views

MUSIC algorithm terminology

Looking for clarification on the notation described in the MUSIC algorithm in Ralph Schmidt's IEEE paper$^{[1]}$. The data model is: $$X = AF + W$$ Schmidt defines the following: ...
BigBrownBear00's user avatar
3 votes
1 answer
606 views

MUSIC implementation in Pyroomacoustics library

I am currently using the multiple signal classification (MUSIC) algorithm provided by the Pyroomacoustics library in order to estimate direction of arrival angles and it works pretty well for both ...
Avio's user avatar
  • 132
3 votes
0 answers
90 views

Direction-of-Arrival estimates clustered at specific angles

I am having an issue which I cannot understand completely. I am working on a simple project where I am testing various algorithms from the family of the Generalised Cross Correlation [GCC] for ...
ZaellixA's user avatar
  • 1,314
3 votes
0 answers
179 views

Compressed Sensing in DOA processing

I'm trying to apply the compressed sensing theory (CoSaMP algorithm) to the DOA estimation in FMCW ULA (made of 48 elements). In the dechirped signals processing I use a first FFT to solve the range ...
Luca Romano's user avatar
2 votes
1 answer
4k views

Understanding GCC-PHAT as a Feature

I'm working on a sound source localization project and am interested in using GCC-PHAT as a feature. I'm quite new to this transformation and I've been reading a few papers about it and I'm still ...
user25758's user avatar
2 votes
1 answer
93 views

Basis Pursuit Denoising (BPDN) algorithm for Direction of Arrival Estimation

I am working on Compressive sensing algorithms for DOA estimation. Can i get any references for writing BPDN code in MATLAB.
AQUINO S RC2113004011010's user avatar
2 votes
1 answer
48 views

DOA beam pattern for circular array

Based on the tutorial for a linear array here, I've written the following code for a 6 microphone circular array. The array has a radius of 5cm. A beam pattern is generated but it doesn't look right ...
Becky Heath's user avatar
2 votes
1 answer
550 views

How does one calculate a steering matrix for DOA given real data and only antenna positions

I am currently trying to implement the MUSIC algorithm for a real dataset which captures a sound signal in a room using a cubic 8 sensor array setup. Every example I've found for the MUSIC algorithm ...
Felkin's user avatar
  • 31
2 votes
0 answers
40 views

Expanding cross correlation DOA estimation to n microphones

I need to detect the Direction of Arrival of a speech signal using an 8 microphone array as part of a project I've been working on. Currently, I have a working solution in the 2 microphone case: $$G(\...
EPGzuz's user avatar
  • 21
1 vote
1 answer
1k views

MUSIC algorithm for DOA with floating point input signals

I am writing a Direction of Arrival (DOA) estimator using the MUSIC algorithm in python and am having trouble getting the correct spectrogram output. Specifically, my resulting graph comes out aliased ...
Felkin's user avatar
  • 11
1 vote
1 answer
198 views

Why in MuSiC (DoA) don't we search for minima of the inverse (pseudo)spectrum?

I have started working on a Direction-of-Arrival estimation problem and I am testing various algorithms. I came across Multiple Signal Classification (MuSiC) method. In all textbooks I have looked at, ...
ZaellixA's user avatar
  • 1,314
1 vote
1 answer
165 views

DOA for bistatic radar

Consider a circular antenna array (UCA) with $N$ antenna elements as part of the CW bistatic radar system. For each element we receive a signal of length $L$: $x_n[k]$, $k=1...L$, $n = 1...N$. Оne of ...
Alexey K's user avatar
1 vote
0 answers
288 views

How to apply MUSIC to FMCW radar IF data?

I'm working on target extraction with raw FMCW ADC data. I arranged my received data in an (numADCsamples x numAntennas x numChirpsPerFrame) radar cube. So far I am using range FFT and doppler FFT to ...
adas123's user avatar
  • 11
1 vote
0 answers
23 views

The estimation deviation in specific angles of Circular array DOA in circular harmonic domain

Recently, I study the MUSIC doa in the circular harmonic domain, but I found the estimation results always have a big bias in some specific angles(angles near to 0 or 180 degree), as showing in the ...
Jeff Wang's user avatar
0 votes
0 answers
172 views

Why MUSIC algorithm fail when the antenna spacing is larger than half wavelength?

I'm studying MUSIC algorithm for far-field DOA estimation. I found that when the antenna spacing $d$ is larger than half wavelength $(\frac{\lambda}{2})$, the algorithm fails and the spatial spectrum ...
McZhang's user avatar
  • 73
0 votes
0 answers
62 views

Find similarities between 2 signals

Is there any heuristic method to find metrics, similarities between two signals? I am not talking about correlation.
Blobmou's user avatar
  • 59