Shortwave transmitting antenna three-dimensional directional diagram aerial mobile measurement system and method

Abstract

The invention discloses a shortwave transmitting antenna three-dimensional directional diagram aerial mobile measurement system and method. The system comprises a field intensity measurement system which is composed of a loop antenna and a field intensity instrument host and an unmanned aerial vehicle platform and other parts. Computation is performed by a field intensity signal preprocessing module, a standard directional diagram computing submodule, a spatial spectrum processing submodule, a digital beam forming submodule and a transmitting antenna calibration factor computing submodule. The omnidirectional loop antenna is mainly adopted to measure field intensity signals, acquire and store the field intensity signals and preprocess the field intensity signals, then the signals are further processed through the spatial spectrum estimation technology, and finally testing is performed on the unmanned aerial vehicle platform. The index is provided for assessment of a shortwave transmitting antenna directional diagram, and online automatic monitoring of the antenna directional diagram can be realized without influencing the real-time performance and the effectiveness of the shortwave transmitting antenna so that the system and the method have the characteristics of being simple in equipment and convenient to operate.

Description

technical field [0001] The invention belongs to the field of all-round measurement and modeling drawing of the three-dimensional pattern of the short-wave transmitting antenna by using an aerial measurement platform of an unmanned aerial vehicle, and more specifically relates to a system and method for measuring the three-dimensional pattern of the short-wave transmitting antenna in the air. Background technique [0002] After the shortwave transmitting antenna is built, the real radiation direction of the antenna Figure 1 It is always what the user hopes to obtain, because the real performance of the antenna can be grasped very intuitively through the pattern. The antenna pattern refers to the distribution of the intensity of the antenna radiation electromagnetic field (usually an electric field) at a fixed distance in the far area with the spatial coordinates, which is called the stereo pattern of the antenna. For small-scale antenna measurement and laboratory research, i...

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Problems solved by technology

[0003] Aiming at the above defects or improvement needs of the prior art, the present invention provides a method for measuring the air movement of the three-dimensional pattern of the short-wave transmitting antenna, thereby solving the problem of realizing the measurement and measurement of the three-dimensional pattern of the short-wave transmitting antenna under field conditions. Drawing Technical Issues

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