Angle of arrival (AOA) estimation using FMCW radar using MUSIC algorithm

1. How does FMCW radar estimate the distance?
2. How does music algorithm work?
3. What is root music algorithm?
4. What is the range of FMCW radar?

How does FMCW radar estimate the distance?

FMCW radar systems measure the frequency difference (Δf, due to run time) between the transmitted and received echo signal for calculating the distance, and it also measures the Doppler frequency (due to the Doppler effect) for calculating the speed of the object.

How does music algorithm work?

The basic idea of MUSIC algorithm is to conduct characteristic decomposition for the covariance matrix of any array output data, resulting in a signal subspace orthogonal with a noise subspace corresponding to the signal components.

What is root music algorithm?

The multiple signal classification (MUSIC) algorithm used by rootmusic is the same as that used by pmusic . The algorithm performs eigenspace analysis of the signal's correlation matrix in order to estimate the signal's frequency content.

What is the range of FMCW radar?

Frequency Modulation is used in FMCW radar. FMCW radars use mm wave electromagnetic spectrum which has very short wavelengths upto 4 mm [9], [10]. The frequency used is in range of 76–81 GHz. Higher frequencies are used so that even smaller objects can be detected effectively.