Compact Deep Vector Sensor Array

Systems & Technology Research (STR) together with our partners, Applied Physical Sciences (APS) is pleased to provide this proposal to develop a deep ocean compact vector sensor array concept for deployment with an A-size sonobuoy. The sensor array will be made up of two arrays, a large hydrophone array and a compact vector sensor array, both with low receiver noise and high sensitivity, exploiting noise rejection in the deep ocean channel and enabling the sensing of signals via reliable acoustic path (RAP) propagation and pushing detection ranges out significantly over similar systems deployed in shallow ocean depths. Furthermore, the concept introduces the novel use of multi-mode passive sonar operating at reduced power and enabling long-life operations beyond 14 days. The initial detection mode utilizes the low-power hydrophone array that turns on or cues the higher power vector sensor array for target localization, tracking and false alarm mitigation. In addition to the deep ocean vector sensor array, STR and its partner will develop in-buoy signal processing to support detection and localization modes. The Phase I concept designs will be the basis for a vector sensor array prototype for Phase II.