R&amp;M Theory and Fundamental Concepts

Anderson, Ronald T.; Neri, Lewis

doi:10.1007/978-94-009-0757-7_3

Cited by 4 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This approach is mostly pertinent to radio frequency (RF) amplifiers [12] and phased array systems [13]. Hardware wear-out, with aging as the dominant failure mechanism, can also degrade reliability and significantly shorten or reduce the useful life period of a system [14]. In addition, situations may occur wherein a system may be called upon to operate beyond its design capabilities due to an unusually demanding mission requirement or to avoid a threat.…”

Section: Related Workmentioning

confidence: 99%

Operational Reliability Metric to Characterize Radar Detection Performability

Ridder¹,

Narayanan²

2021

Int J Performability Eng

View full text Add to dashboard Cite

Historically, reliability studies of electronic systems, including radar, have primarily focused on the trustworthiness and endurance of the hardware components of the system. While the radar's hardware is indeed a crucial part of the system, the signal processing aspects of the radar and the actual operating conditions, such as the environment and aging, have been neglected in previous reliability studies. In this paper, the operational reliability paradigm is used to analyze the parameters of the radar's signal processor and their effects on the radar's target detection performance while in service. A detection threshold is derived using the operational reliability formulation which can be optimized for given target and clutter statistics.

show abstract

Section: Related Workmentioning

confidence: 99%

Operational Reliability Metric to Characterize Radar Detection Performability

Ridder¹,

Narayanan²

2021

Int J Performability Eng

View full text Add to dashboard Cite

show abstract

“…In radar systems, this approach is mostly pertinent to radio frequency (RF) amplifiers [6] and phased array systems [7]. Hardware wear-out, with aging as the dominant failure mechanism, also degrades reliability and significantly shortens or reduces the useful life period of a system [8]. Furthermore, situations may occur wherein a system may need to operate beyond its design capabilities due to unusually demanding mission requirements or environmental conditions.…”

Section: Introductionmentioning

confidence: 99%

Radar Detection Performability under Graceful Degradation

Ridder

Narayanan²

2021

Int J Performability Eng

View full text Add to dashboard Cite

Operational reliability has been introduced recently as a useful metric to describe the performability of a radar's signal processing system. In this paper, the concept of operational reliability is investigated for a typical radar scenario in which a phased array radar on an airborne platform is tasked with detecting a vehicle on the ground. Various background clutter scenarios are modeled in order to study the effects of clutter type on operational reliability and the associated optimal threshold. The effects of radar component degradation on operational reliability are investigated for two different radar system components: the receiver chain low noise amplifier and the phased array antenna. The gain degradation of the low-noise amplifier and element failures in the phased array antenna are modeled and applied to the operational reliability calculations under the various clutter scenarios. By adjusting the detection threshold adaptively, it is seen that the operational reliability can be optimally tuned and maximized even under graceful degradation conditions.

show abstract