Noncoherent Sequential Acquisition of DS Waveforms

Two different versions of multiple dwell noncoherent sequential acquisition of direct sequence waveforms are presented. One involves recentering the test statistic after each dwell, whereas the other consists of continuous integration over all dwells. Both of these sequential acquisition algorithms are shown to outperform their fixed dwell counterparts. In addition the two and three dwell sequential acquisition schemes outperform single dwell sequential acquisition schemes by as much as 4dB.