SUB-NYQUIST COPRIME SENSING WITH COMPRESSED INTER-ELEMENT SPACING - LOW LATENCY APPROACH

ICTACT Journal on Communication Technology ( Volume: 11 , Issue: 1 )

Abstract

vioft2nntf2t|tblJournal|Abstract_paper|0xf4ff5d662b000000aa8c040001000100
One of the generalizations of the coprime array is the Coprime Array with Compressed Inter-element Spacing (CACIS), which is characterized by inter-element spacing that could be varied. The prototype co-prime arrays and nested arrays are a special case of the CACIS scheme.This paper addresses the aspects that were not considered in previous researches in the given context. The fundamentals of the difference set for the CACIS configuration are developed for low latency. In addition, the closed-form expressions for the weight function (number of samples that contribute to estimate the autocorrelation), and the bias window of the correlogram estimate, which were previously unknown, are derived. Ideally, the bias window should be an impulse. Several examples are provided along with simulations to verify the claims made. All possible sample pairs are used for estimation, which provides for low latency. As an application, temporal spectrum is considered for simulations.

Authors

Usham V Dias
Indian Institute of Technology Delhi, India

Keywords

Co-Prime Arrays, Samplers, Sparse Sensing, Autocorrelation Estimation, Low Latency

Published By
ICTACT
Published In
ICTACT Journal on Communication Technology
( Volume: 11 , Issue: 1 )
Date of Publication
March 2020
Pages
2126-2137

ICT Academy is an initiative of the Government of India in collaboration with the state Governments and Industries. ICT Academy is a not-for-profit society, the first of its kind pioneer venture under the Public-Private-Partnership (PPP) model

Contact Us

ICT Academy
Module No E6 -03, 6th floor Block - E
IIT Madras Research Park
Kanagam Road, Taramani,
Chennai 600 113,
Tamil Nadu, India

For Journal Subscription: journalsales@ictacademy.in

For further Queries and Assistance, write to us at: ictacademy.journal@ictacademy.in