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Radar envelope is a critical Measure of Performance (MOP) identified in the Test and Evaluation Master Plan (TEMP). This is the volume of space where a radar system is required to reliably detect an object with a specific size and speed. This is one of the requirements that must be evaluated as part of the acceptance testing process. Radar systems have natural deficiencies because the laws of physics create performance constraints that cannot be altered. The ambiguity function associated with pulse compression and scalloping associated with moving target indication are two examples. Complete coverage requires radar at multiple locations ''and'' multiple different kinds of radar. == Definition == Radar system specifications require a specific level of performance within a specific radar envelope. This performance includes the following characteristics. * Cross section * Blind range * Radial velocity * Instrumented range * Scan time * Altitude * Elevation angle * Bearing coverage * Sidelobe performance Data is extracted and recorded from the radar system while aircraft, balloons, ships, drones, missiles or other objects are moved within the radar envelope. The recorded data is compared to distance, altitude, and speed of the objects to evaluate the pass-fail criteria. These are the typical shapes of the physical radar envelope. * Flattened donut * Cylinder with spherical void near the center * Disk with spherical void near the center * Pie with a missing slice and spherical void near the center 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Envelope (radar)」の詳細全文を読む スポンサード リンク
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