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Correction method used for coverage field strength estimation of broadcast television system

A radio and television system, field strength technology, applied in transmission systems, electrical components, transmission monitoring, etc., to achieve the effect of improving capability analysis and system planning capabilities, and improving analysis accuracy

Inactive Publication Date: 2013-05-01
THE 22ND RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problem of lack of analysis and correction for broadcast / television system coverage in the prior art, the present invention provides a correction method for estimation of broadcast and television system coverage field strength

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  • Correction method used for coverage field strength estimation of broadcast television system
  • Correction method used for coverage field strength estimation of broadcast television system
  • Correction method used for coverage field strength estimation of broadcast television system

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Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0020] figure 1 It shows the flow of a correction method for broadcasting / television system coverage field strength estimation according to the present invention, which specifically includes:

[0021] 1) In the analysis area covering the field strength, according to the position of the measurement point and the equivalent radiated power of the radio and television transmitting station, calculate the theoretical value of the field strength at the measurement point where λ and represent longitude and latitude;

[0022] 2) Grid the analysis area, and calculate the theoretical value of the field strength at the receiving grid point

[0023] 3) Obtain the measured value of the field stren...

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Abstract

The invention discloses a correction method used for coverage field strength estimation of a broadcast television system. The method comprises the following steps of calculating theoretical values of field strength at measuring points in an analyzing area of the coverage field strength; rasterizing the analyzing area; calculating the theoretical values of the field strength at receiving grid points; obtaining measured values of the field strength at the measurement points; calculating the relative quantity of the difference value between the measured values and the theoretical values of the field strength at the measuring points; calculating the relative quantity of the difference value between the measured values and the theoretical values of the field strength at the receiving grid points; and correcting the field strength theoretical value of each receiving grid point in the analyzing area. According to the theoretical coverage feature of an emission station of the broadcast / television system and the actually measured results surround the emission station, the theoretical coverage feature of the emission station is corrected, and the theoretical analyzing result more close to the actual situation is given out, so as to provide support for the planning and design of the broadcast / television system.

Description

technical field [0001] The invention relates to the technical field of broadcasting and television, in particular to a correction method for estimating the coverage field strength of a broadcasting and television system. Background technique [0002] The rapid development of terrestrial radio / television services has put forward higher and higher requirements for the capability analysis and system planning of the terrestrial radio / television coverage network. The propagation prediction method as the basis for the analysis of radio / television coverage area, relevant ITU ITU recommendations, domestic and foreign public documents, and relevant domestic industry standards have put forward relevant theories, forming a theoretical, empirical / semi-empirical model, in the regional analysis Good results have been achieved. After the model was proposed, some scholars at home and abroad analyzed the model based on the data collected in specific areas, conducted research on model revisi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00H04B17/318
Inventor 王健姬生云苏海滨
Owner THE 22ND RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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