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MDA GLOSSARY, VER. 4.0 P
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PEM Program Element Monitor (AF).
PENAID Penetration Aid.
Penaid
(Penetration Aid)
(Formerly an acronym for Penetration Aid.) Techniques or devices employed by
offensive aerospace weapon systems to increase the probability of penetrating
enemy defenses.
Penetration
Testing
The portion of security testing in which the penetrators attempt to circumvent the
security features of the system. The penetrators may be assumed to use all
system design and implementation documentation, which may include listings of
system source code, manuals, and circuit diagrams. The penetrators work under
no constraints other than those that would be applied to ordinary users.
PEO Program Executive Officer.
PEO-AMD Program Executive Officer, Air and Missile Defense. (U.S. Army)
PEO (SC/AP) Program Executive Officer, Surface Combatants/AEGIS Program.
PEO (TAD) Program Executive Officer, Theater Air Defense. (U.S. Navy)
PEO (TAD)-B Program Executive Officer, U.S. Navy Theater Ballistic Missile Defense Program
Office.
PEP Producibility Engineering and Planning.
PEPP Producibility Engineering and Production Planning.
Peregrine An Air Force boost-phase interceptor concept under development at USAF/SMC.
Performance Those operational and support characteristics of the system that allow it to
effectively and efficiently perform its assigned mission over time. The support
characteristics of the system include both supportability aspects of the design
and the support elements necessary for system operation.
Performance
Requirement
A requirement that specifies a performance characteristic that a system or system
or system component must possess; for example, speed, accuracy, frequency.
Performance
Specification
(1) A specification that sets forth the performance requirements for a system
or system component.
(2) Synonymous with requirements specification.
Perimeter
Acquisition
Radar and Attack
Characterization
System (PARCS)
AN/FPQ-16 phased array radar at Cavalier AFS, ND, used for early warning and
attack assessment.
Period (nodal) Time for a satellite to travel once around its orbit.
Permeability Having the ability to diffuse through or penetrate something.
Pershing II OBSOLETE. US intermediate-range missile deployed in Europe.
PERT Program Evaluation and Review Technique.
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PERT Chart A graphic portrayal of milestones, activities, and their dependency upon other
activities for completion, and depiction of the critical path.
PESHE Programmatic Environmental Safety and Health Evaluation.
PET (1) Pilot-Line Experiment Technology. (2) Production Environmental Test.
PFC Prototype Flight Cryocooler.
PFD Preconditions for Defense.
PFIAB President’s Foreign Intelligence Advisory Board.
PFS Pre-Feasibility Study (UKMOD).
PGG Patrol Gunboat, Guided missile (Naval term).
PGGH Patrol Gunboat Guided Missile Hydro-foil (Naval term).
PGM Precision Guided Munition.
PGU Power Generation Unit.
PH&S Packaging, Handling and Storage (see PHST) (ILS term).
Phased Array The arranging of radiating or receiving elements that, although physically
stationary, is electronically steer-able and can switch rapidly from one target to
another (e.g., phased array radar).
Phased Array
Tracking Radar
Intercept On
Target (missile)
(PATRIOT)
A point or limited area defense system originally built to intercept aircraft. PAC-3
improvements, which will give it greater capability against theater ballistic missiles,
include upgrades to the radar and selection of an improved missile, either
PATRIOT Multimode Missile or ERINT.
Phased
Deployment
The sequential steps of element deployments leading to a designated system
capability that is realizable with fiscal and technological constraints.
Phase One
Engineering
Team (POET)
OBSOLETE. An FFRDC providing technical support to the Phase I Program
Office. Now referred to as POET.
Phenomenology The topological classification of a class of phenomena. Phenomenology efforts
collect and analyze optical and radar signature data, and model phenomena
required by systems developers to design and evaluate SDS elements.
PHI Photonic Hit Indicator.
PHIGS Programmer’s Hierarchical Interactive Graphics System.
PHOTINT Photographic Intelligence.
Photochemical A chemical reaction resulting from exposure to radiant energy or light.
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Photoelectric
Effect
The process whereby a gamma ray (or x-ray photon) with energy somewhat
　
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