The paper focus on interferometer angle error and on the signal processing required for interferometry, but also introduce monopulse angle-of-arrival for comparison. This chapter, derive the basic equations for monopulse angle estimation and discuss the fundamentals of eigen-based superresolution techniques.

Chapter Contents:

• 4.1 The Angle-of-Arrival Problem
• 4.2 Monopulse Angle Estimation
• 4.3 Phased Array Beam Pointing Error
• 4.3.1 Effect of Correlated Phase Errors on Phased Array Beam Pointing
• 4.3.2 Interferometer Accuracy and Beam Pointing Error
• 4.4 Resolution Versus Accuracy
• 4.5 Enhanced Angle Estimation Using the Array Covariance
• 4.5.1 Angle-of-Arrival Resolution Performance
• 4.5.2 Signal Versus Noise Eigenvalue Classification
• 4.6 Enhanced Angle Resolution Algorithms
• References

Inspec keywords: eigenvalues and eigenfunctions; radar signal processing; direction-of-arrival estimation; radar interferometry

Other keywords: monopulse angle estimation; eigen-based superresolution techniques; interferometer angle error; radar angle-of-arrival estimation; monopulse angle-of-arrival; signal processing

Subjects: Radar equipment, systems and applications; Linear algebra (numerical analysis); Signal processing and detection