A Review on TOA Estimation Techniques and Comparison

Document Type

Book Chapter

Publication Date



Department of Electrical and Computer Engineering


Estimating the distance is the core of many positioning systems such as radar, sonar, and wireless local positioning systems (WLPSs). This chapter introduces time-of-arrival (TOA) techniques used in many localization systems. It focuses on wideband TOA estimation techniques. The chapter discusses different categories of TOA techniques that include correlation-based approaches, deconvolution methods, maximum likelihood (ML)-based methods, subspace-based methods, and blind signal separation (BSS)-based approaches. It also presents mathematical details of the introduced techniques. The chapter then compares these techniques in terms of different performance measures. It investigates blind TOA techniques and introduces a new technique based on independent component analysis (ICA). Finally, the chapter discusses multiband range estimation that enables cognitive radios (CRs) to attain higher localization performance.

Publication Title

Handbook of Position Location: Theory, Practice, and Advances