Covert communication techniques play a crucial role in military and commercial applications
to maintain the privacy and security of wireless transmissions from prying eyes. These …

This paper investigates sound source localisation using an ad-hoc microphone array, where
the microphones arbitrarily distributed in a room without knowledge of their locations. The …

In this paper we analyze self-encoded spread spectrum (SESS) modulation with differential
encoding and decoding. We show that this structure eliminates the BER effect of error …

In this paper, we apply iterative detection to typical time hopping (TH) pulse position
modulation (PPM) ultra wideband (UWB) spread spectrum systems. Unlike a typical TH-PPM …

Self-encoded multiple access (SEMA) is a unique realization of random spread spectrum. As
the term implies, the spreading code is obtained from the random digital information source …

Self-encoded spread spectrum (SESS) is a novel modulation technique that acquires its
spreading sequence from the randomness of an input data stream rather than through the …

在扩展频谱通信中, 扩频序列的性能与系统的抗多址干扰, 抗多径衰落的能力,
和信号的低截获率概率有密切关系, 也关系到捕获与同步系统的实现. 扩频序列的特性对扩频 …