Relatively few remains of Late Pliocene hominids' knapping activities have been recovered
to date, and these have seldom been studied in terms of manual dexterity and technical …

Communication receivers that utilize I/Q downconversion are troubled by amplitude and
phase mismatches between the analog I and Q branches. These mismatches are …

This letter addresses the blind signal estimation problem in the so-called conjugate signal
model, where the observed signal is a linear combination of the desired signal and its …

This paper proposes a technique that jointly estimates the I/Q mismatch, dc offset, carrier
frequency offset, and channel for receivers in frequency selective channels. The joint …

Space-time coded wireless transmission techniques with multiple transmit and receive
antennas can provide considerable increases in both the link quality as well as link capacity …

The impact of impairments such as transmitter/receiver I/Q gain/phase mismatch on the
performance have become severe due to high operational speeds and continuous …

In this paper, we consider estimation and compensation of the I/Q imbalance generated by
the direct-conversion receiver in orthogonal frequency division multiplexing (OFDM) …

We propose a self-test method for zero-IF radio frequency transceivers using primarily
loopback, aided by a small built-in self-test (BIST) circuitry, to determine critical performance …

The imbalances between the In-phase (I) and Quadrature-phase (Q) branches represent a
significant source of impairment in the orthogonal frequency division multiplexing (OFDM) …

This correspondence proposes techniques that jointly compensate for amplifier nonlinearity
and quadrature modulation/demodulation (QM/QDM) errors. The proposed methods are …