Design criteria for sizing regional arrays

Conference · Sun Jan 01 04:00:00 EST 1984

OSTI ID:6734212

Claassen, J P

In view of the provisions of the Limited Test Ban Treaty of 1963, a Comprehensive Test Ban Treaty (CTBT) focuses on the detection, characterization and identification of underground nuclear explosions. A network of small seismic arrays for in-country monitoring at regional distances has been proposed as a method of verifying conformance to a CTBT at an acceptable level. To date, experience in evaluating seismic verification has largely been limited to events monitored at teleseismic distances. In view of the significant differences between teleseismic and regional signals, careful consideration must be given to designing regional arrays. Notions from velocity estimation, bearing estimation dictate arrays many wavelengths across for accurate performance. In particular, the array size is established for three bearing estimators to overcome residual phase perturbations introduced by wavefront distortions and variations in receiver characteristics. Good detection performance also dictates large arrays appropriately filled with receivers.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6734212
• Report Number(s): SAND-84-0977C; CONF-8405186-2; ON: DE84011258
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450300* -- Military Technology
Weaponry
& National Defense-- Nuclear Explosion Detection
DESIGN
DETECTION
EXPLOSIONS
MEASURING INSTRUMENTS
NUCLEAR EXPLOSION DETECTION
SEISMIC ARRAYS
TESTING
UNDERGROUND EXPLOSIONS