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A Novel Monopulse Technique for Adaptive Phased Array Radar.

Xinyu Zhang^1,2, Yang Li^3,4, Xiaopeng Yang⁵

¹Department of Information and Electronics Engineering, Beijing Institute of Technology, Beijing 100081, China. zhangxinyu90111@gmail.com.

Sensors (Basel, Switzerland)

|January 12, 2017

Summary

This summary is machine-generated.

A new constrained monopulse algorithm for spatial adaptive arrays prevents beam distortion, improving target angle accuracy. This method effectively suppresses interference without degrading performance, offering a robust solution for radar systems.

Keywords:

adaptive phased array interferences monopulse technique

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Area of Science:

Radar Systems Engineering
Signal Processing

Background:

Monopulse angle measurement is crucial for radar accuracy.
Adaptive beamforming in spatial arrays can distort beams, degrading monopulse performance.
Existing adaptive monopulse methods struggle with beam distortion and interference.

Purpose of the Study:

To propose a novel constrained monopulse angle measuring algorithm for spatial adaptive arrays.
To address the issue of beam distortion caused by adaptive beamforming.
To enhance monopulse performance in the presence of severe interference.

Main Methods:

Developed a new constrained monopulse algorithm for spatial adaptive arrays.
Introduced a novel constraint for difference beamforming.
Derived theoretical mean and variance for the monopulse estimator.
Conducted mathematical simulations to validate the algorithm.

Main Results:

The proposed algorithm suppresses unwanted signals without beam distortion.
It demonstrates superior robustness in practical scenarios compared to conventional methods.
The algorithm maintains the simplicity of one-dimension monopulse.
Outperforms conventional adaptive monopulse methods in severe interference near the mainlobe.

Conclusions:

The novel constrained monopulse algorithm is effective for spatial adaptive arrays.
It offers improved performance and robustness against interference.
The algorithm presents a practical and appealing solution for adaptive planar arrays.