Mathematical Model for the Minimum Detectable Effective Cross-Section for an Ultrasonic Motion Sensor (UMS) (From Carnahan Conference on Security Technology, P 131-136, 1987, John S. Jackson and R. William De Vore, eds. -- see NCJ-118105)

• NCJ Number: 118125
• Author(s): J A Rarick
• Date Published: 1987
• Length: 6 pages
• Publication Format: Document
• Publication Type: Report (Technical)
• Language: English
• Country: United States of America

Annotation

This paper develops a theoretical model for the minimum detectable effective cross-section for an ultrasonic motion sensor (UMS).

Abstract

The model is developed based on minimum detectable power or where power is assumed to be within the frequency band defined as an alarm condition. A theoretical view of the effect of an isotropically radiating target versus a specularly reflecting target is also presented. 4 figures, 39 formulas. (Author abstract modified)