Deep space probe measurement and control antenna installation direction optimization method
A technology of deep space detectors and optimization methods, which is applied in the field of aerospace measurement and control, can solve the problems of reducing overall performance and increasing design costs, and achieve the effects of relaxing the transmission power or antenna design requirements, efficient overall design, and good measurement and control communication quality
Active Publication Date: 2020-03-27
NO 63921 UNIT OF PLA
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Problems solved by technology
Although in the overall design of deep space detectors, the worst situation is usually considered in the design of relevant indicators, but this increases the design cost and reduces the overall performance.
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[0030] In order to more clearly describe the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that are used in the embodiments. Apparently, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to these drawings without creative efforts.
[0031] When describing the embodiments of the present invention, the terms "vertical", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", " The orientation or positional relationship expressed by "horizontal", "top", "bottom", "inner", and "outer" is based on the orientation or positional relationship shown in the relevant drawings, which are only for the convenience of describing the present invention and simplifying the description, It is not intended to indicate or imply that the device or element referred to must have a p...
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The invention relates to a deep space probe measurement and control antenna installation direction optimization method, which comprises the steps of a, for each sample i in an n measurement and control arc section of each measurement station, determining projections kxn (i), kyn (i) and kzn (i) of unit vectors from a detector to the measurement stations under a detector body coordinate system; b,constructing a direction matrix K from a detector to the observation station in the N observation station measurement and control arc sections; c, taking M coordinate points on the spherical surface by adopting a Fibonacci grid, and constructing a pointing search matrix S based on the three-dimensional coordinates of the M points; d, based on the direction matrix K and the search matrix S, calculating an included angle between each search direction and the direction of the detector pointing to the observation station in the measurement and control arc section; and e, obtaining the sum of the included angles between each search direction and the direction of the detector pointing to the observation station in the measurement and control arc section, wherein the search direction with the minimum sum is the optimal installation direction of the detector measurement and control antenna under the body coordinate system. According to the deep space probe measurement and control antenna installation direction optimization method, the detector measurement and control antenna can work in a taper angle range with large gain, and better measurement and control communication quality is obtained.
Description
technical field [0001] The invention relates to the technical field of spaceflight measurement and control, in particular to a method for optimizing the installation direction of a measurement and control antenna of a deep space probe oriented to measurement and control requirements. Background technique [0002] In deep space exploration missions, the uplink and downlink measurement and control links are the only channel connecting the ground and deep space detectors. Stable remote control, telemetry, and high-precision external measurement all rely on high-quality TT&C links, and the TT&C antenna of the deep space probe is a key link in the TT&C link. [0003] At present, common deep-space probe measurement and control antennas are omnidirectional antennas, which can ensure good antenna gain within a large cone angle range, so as to adapt to ground-based measurement and control at different angles in measurement and control tasks. In addition to the design of the measurem...
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IPC IPC(8): G06F30/20
Inventor 徐得珍李赞辛晓生
Owner NO 63921 UNIT OF PLA