曝光台 注意防骗
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surpassed cause automated engagements to be enabled.
Pre-Commit
Strategy
A tactic in which defense weapons are fired without being individually committed
to specific targets. Target commitment would occur relatively late in the
defensive weapon’s trajectory.
Pre Launch
Survivability
The probability that a delivery and/or launch vehicle will survive an enemy attack
under an established condition of warning.
Precedence 1. A designator, which indicates the order in which a number of messages shall
be served. Four precedence levels are provided for SDS, with one being the
highest and four the lowest. Messages with precedence level one are served
first and those with level four last. These correspond to the four precedence
levels, Flash, Immediate, Priority, and Routine respectively. 2. (Reconnaissance)
A letter designation, assigned by a unit requesting several reconnaissance
missions, to indicate the relative order of importance, within an established
priority, of the mission requested.
Precision
Decoys
Decoys that precisely match RV characteristics either exoatmospherically or
endoatmospherically, or both, and seek to deceive the defense into intercepting
them.
MDA GLOSSARY, VER. 4.0 P
229
Preconditions for
Defense (PD)
PDs are NCA pre-approved criteria, authorities, and procedures that delineate
circumstances under which USCINCSPACE BMD forces will initiate or continue
combat engagements and operations against hostile ballistic missile attacks
directed at the United States, its Allies, or U.S. interests during peace, crisis, and
war.
Predicted
Intercept Point
(PIP)
The calculated position in space where the target and interceptor coincide.
Preferential
Defense
Preferential defense is the a-priori assignment of defensive assets to protect
given facilities or capabilities.
Preferential
Defense Strategy
A tactic used as part of the SDS strategy to optimize the use of weapons and
sensors by selecting high value targets for engagement by the defense while
temporarily allowing less important targets to pass. This strategy forces the
offense to attack with several times as many RVs as the defense has
interceptors. Since preferential defense demands precise impact point prediction,
the strategy is placed at a disadvantage if targets are closely spaced, if RVs can
maneuver or if the defense intercepts ICBMs in the boost phase.
Preferential
Offense
The concentration of offensive assets on a subset of targets.
Preliminary
Design Review
(PDR)
A review conducted on each configuration item to evaluate the progress,
technical adequacy, and risk resolution of the selected design approach; to
determine its compatibility with performance and engineering requirements of the
development specification; and to establish the existence and compatibility of
the physical and functional interfaces among the item and other items of
equipment, facilities, computer programs, and personnel. Conducted during
Phase I, Demonstration and Validation (for prototypes), and Phase II,
Engineering and Manufacturing Development.
Preplanned
Product
Improvement
(P3I)
Planned future evolutionary improvement of developmental systems for which
design considerations are effected during development to enhance future
application of projected technology. Includes improvements planned for ongoing
systems that go beyond the performance envelope to achieve a needed
operational capability.
Preplanned
Response
Options (PRO)
Ballistic Missile Defense (BMD) reactions, which have been preplanned,
analyzed, and pre-approved, for specific ballistic missile threats. The PRO,
equivalent to an operations plan, consist of a number of Defense Employment
Options (DEO) which provide force employment objectives to Component forces
based upon the world situation, national objectives/guidance, BMD asset status,
and the intent of the threat. PRO is automatically processed with real-time
human oversight and control when USCINCSPACE directs execution.
Preproduction
Prototype
An article in final form employing standard parts, representative of articles to be
produced subsequently in a production line.
Preproduction
Test
This is a test of design-qualified hardware that is produced using production
tooling and processes, which will be used to produce the operational hardware.
No production hardware should be accepted prior to satisfactory completion of
this test. Test objectives include: gaining confidence that production hardware
is going to work; that it will be reliable; that it can be maintained and supported
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