In this study, older adults monitored for pre-assigned target sounds in a target talker's speech in a quiet (no noise) condition and in a condition with competing-talker noise. The question was to which extent the impact of the competing-talker noise on performance could be predicted from individual hearing loss and from a cognitive measure of inhibitory abilities, i.e., a measure of Stroop int...

The pevormance of a Direct Sequence Differential Phase Shift Keying (DS-DPSK) spread spectrum system employing time diversity and self-normalization over a Ricianfiequency nonselective, slowly fading channel in the presence of pulsed noise interference and additive white Gauxsian noise (AWGN) is considered, An interference model which considers the possibility that either both, one or none of t...

Orthogonal frequency division multiplexing (OFDM) technique is becoming the most frequently used technique for wireless systems such as Long Term Evolution (LTE) and enhanced standards are contemplating its combination with multiple input multiple output (MIMO).These systems suffer from inter-channel interference (ICI) introduced by phase noise and channel estimation errors.ICI is also caused d...

This paper discusses how using a few low-gain auxiliary antennas as pan of a radio astronomy (RA) imaging m a y makes it possible to obtain outstanding rejection of interfering sources. We are particularly interested in canceling interference from orbital satellite downlink signals such as from GLONASS and IRIDIUM. These very strong interferers affect critical observation spectral bands used in...

A new space-time turbo equalization algorithm is derived for frequency-selective multiple-input–multiple-output (MIMO) channels with unknown interference. The algorithm is an extension of our proposed MIMO equalization algorithm [12], which performs joint channel estimation, multiple user’s signal detection, and decoding, all in an iterative manner. This paper’s proposed algorithm uses estimate...

In this paper, a differential multi-band CMOS low noise amplifier (LNA), operated in a wide range from 800MHz~1700MHz, with wide-band interference rejection, linearity improvement and the capacitive cross-coupling technology, is proposed. The proposed differential multi-band CMOS low noise amplifier with high linearity performance and good interference rejection performance. The post-simulation...

Abstract – Performance degradation of an analog FM and PAL-G signal due to Spread Spectrum (SS) interference is investigated. An analytical expression between RF TV protection ratio (CIR) and baseband unweighted Signal-toNoise ratio (SNRV), for co-channel spread spectrum and noise interference, is derived. Also, we expressed the audio frequency signal-to-noise ratio (AF SNR) output due to SS ov...

In this thesis, we consider the interference cancellation problem for the broadband digital aeronautical communication system. We investigate the L-band digital aeronautical communication system (L-DACS) in the presence of distance measuring equipment (DME) interference. First, we describe the OFDM receiver of the LDACS1. In addition, we discuss the impacts of the DME spectrum on the subcarrier...

An ECG signal is basically an index of the functionality of the heart. For example, a physician can detect arrhythmia by studying abnormalities in the ECG signal. Since very fine features present in an ECG signal may convey important information, it is important to have the signal as clean as possible. Power line interference may be significant in electrocardiography. Often, a proper recording ...

In cognitive networks, cooperative spectrum sensing can increase detection performance significantly. In this paper, square-law combining technique is chosen as cooperative diversity scheme in energy detecting when the wireless environment is modeled as Nakagami channel. Moreover, we use double-threshold algorithm to reduce the effect caused by noise uncertainty. Error detection probability is ...