In this paper, performances of stored-reference, transmitted-reference (TR), and energy-
detection (ED)-based time-of-arrival estimation techniques are analyzed for impulse-radio …

In this paper, signal waveform designs for TOA estimation with non-coherent receivers
based on ultrawideband impulse radio are discussed. Four different transmit signal …

Ranging with energy detectors enables low-cost implementation. However, any interference
can be quite detrimental to range accuracy. We develop a method that performs nonlinear …

Effective implementation of low probability of intercept (LPI) techniques is crucial for
enhancing the survivability of radar systems in electronic warfare scenarios. This article …

The broadcast nature of wireless channels and broad coverage brings significant
challenges to the security of Satellite Internet. Recently, a new security paradigm named …

Owing to the extremely high-time resolution of impulse radio ultra-wideband (IR-UWB), time
of arrival (TOA) estimation has been an important and tempting issue of this technology ever …

Ranging requires detection of the first arriving signal component. The accuracy of time-
ofarrival-based range estimation is greatly degraded in the presence of multi-user …

The detectability of instantaneously narrowband and wideband radar waveforms in a digital
channelized receiver is studied in this work. The waveforms include monotone, linear …

This paper proposes an energy detection based time of arrival (TOA) estimation scheme for
impulse radio ultra-wideband (IR-UWB) systems. The proposed scheme is composed of two …

The research works presented in this thesis are motivated by the low complexity and high
accuracy capabilities of UWB Impulse Radio (IR) systems. In particular, this thesis addresses …