Spread spectrum techniques are used in communication systems to provide low probability
of intercept and jamming, to overcome the channel where the transmitted signal is distorted …

Aiming at reducing the system complexity, raising communication rate and supporting
CDMA based applications, a direct sequence spread spectrum based underwater acoustic …

Anti-jamming, concealment and low signal noise ratio detection of direct sequence spread
spectrum system is much better than regular communication system. Under typical three …

Various spread spectrum techniques have been used to offer low data rate acoustic links. A
new complex waveform named M-ary chirps (MCSS) for underwater acoustic …

We compare two orthogonal modulation schemes for underwater acoustic sensor network
using spread spectrum communication. The first which has been recently published …

Conventional underwater acoustic (UWA) spread spectrum communication technology
usually uses m sequence as a spreading code, but pulse position modulation (PPM) spread …

Nowadays, the construction and application of underwater acoustic (UWA) networks has
received much focus in the research area of UWA communication. This paper constructed …

Complexity of underwater channel itself and high investment, high risk of field tests are
limitations of underwater acoustic communication technology development. For high …

In order to achieve Low Probability of Intercept (LPI) in hostile environments and increase
robustness when the transmitted signal is distorted by multipath propagation, Spread …

Direct sequence spread spectrum (DSSS) provides a robust solution for shallow water
acoustic communications. DSSS uses a code sequence to spread the symbols at the …