曝光台 注意防骗
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by the user; and that it is not over designed.
MDA GLOSSARY, VER. 4.0 P
230
Preset Guidance A technique of missile control wherein a predetermined flight plan is set into the
control mechanism and cannot be adjusted after launching.
President's
Budget (PB)
The Federal Government's budget for a particular fiscal year transmitted in
January (first Monday after January 3rd) to the Congress by the President in
accordance with the Budget and Accounting Act of 1921, as amended.
Includes all agencies and activities of the executive, legislative and judicial
branches (For FY 88/89, two-year budget for DoD submitted in January 1987.)
PRF Pulse Repetition Frequency.
PRG Program Review Group.
Prime Contractor A contractor having responsibility for design control and delivery of a system or
equipment such as aircraft, engines, ships, tanks, vehicles, guns and missiles,
ground communications and electronic systems, ground support equipment, and
test equipment.
Prioritize Targets To identify and rank targets in priority fashion, based upon criteria such as type,
predicted impact point, and predicted time of impact.
PRN Pseudo Random Noise.
PRO (1) Preplanned Response Options. (2) Plant Representative Office.
Probability of
Damage
The probability that damage will occur to a target expressed as a percentage or
as a decimal.
Probability of
Detection
(1) The probability that the search object will be detected under given
conditions if it is in the area searched.
(2) The probability an object will be detected given all known error and noise
sources.
Probability of
Discrimination
This is the probability that an object, which is threatening will be correctly
identified. The ability to discriminate between a potential target and a decoy is
quantified by a “K” factor, in which the higher the numeric the greater the
probability of discrimination (thus, a “0” K factor implies that the target is
indistinguishable from the decoy).
Probability of
False Alarm
(1) For a single sensor this is the probability that an object will be detected
when no object is present.
(2) For discrimination, this is the probability that an object, which is not a
threatening object will be identified as one.
Probability of Kill The lethality of a weapon system. Generally refers to armaments (i.e. missiles,
ordnance, etc.) Usually the statistical probabilities that the weapon will detonate
close enough to the target with enough power to disable the target. (Defense
Systems Management College)
Probe The air vehicle of the GSTS.
PROC Procurement.
Process Data
Sensitivity Label
(PDSL)
The sensitivity label for data contained in a process.
MDA GLOSSARY, VER. 4.0 P
231
PROCMT Procurement.
Procuring
Contracting
Officer (PCO)
The individual authorized to enter into contracts for supplies and services on
behalf of the government by sealed bids of negotiations that is responsible for
overall procurement of the contract.
Prod Production.
Producibility The relative ease of manufacturing an item or system. This relative ease is
governed by the characteristics and features of a design that enable economical
fabrication, assembly, inspection, and testing using available manufacturing
techniques.
Producibility,
Engineering, and
Planning (PEP)
Applies to production engineering tasks to ensure a smooth engineering
transition from development into production. PEP, a systems and planning
engineering approach, assures that an item can be produced in the required
quantities and in the specified time frame, efficiently and economically, and will
meet necessary performance objectives within its design and specification
constraints. As an essential part of all engineering design, it is intended to
identify potential manufacturing problems and suggest design and production
changes or schedule trade-offs, which would facilitate the production process.
Producibility,
Programming,
and Issues
Resolution
Strategies
(PPIRS)
A semi-annual document put out by the MDA P&M community listing all medium
and higher P&M risk issues as prioritized and coordinated by the MDA P&M
Working Group.
Producibility
Review
A feasibility review of the design of a specific hardware item or system to
determine the relative ease of producing it using available production technology
considering the elements of fabrication, assembly, inspection, and test. This is a
generic term for the concurrent engineering portions of MIL-STD 1521 system
design reviews.
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