Traffic artery coverage optimum glancing angle obtaining method based on power lobe rotation
A technology of traffic trunk line and acquisition method, which is applied in the field of obtaining the optimal grazing angle of traffic trunk line coverage, can solve the problems of darkness under lights, inability to effectively guarantee signal coverage, and difficulty in guaranteeing signal coverage, so as to reduce the number of construction sites and increase investment. Return rate and the effect of improving customer satisfaction
Active Publication Date: 2017-11-07
HUAXIN CONSULTATING CO LTD
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Problems solved by technology
Since the power lobe emitted by the antenna is approximately elliptical, the coverage near the intersection of the maximum value of the main lobe power and the traffic arterial line is good, but it cannot effectively guarantee the signal coverage of the coverage area corresponding to the large angle point of the main lobe power, especially at the grazing angle. In large cases, it is difficult to guarantee the signal coverage around the antenna perpendicular to the traffic trunk line, resulting in the phenomenon of darkness under the lights
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[0072] This example includes straight distance and included angle measurement, vertical distance space propagation loss and vehicle body penetration loss, vertical distance coverage main lobe power angle determination, power lobe rotation function and optimal grazing angle, main lobe meets coverage index minimum power angle, single-sector effective coverage length and other steps.
[0073] The following traffic arteries (such as figure 1 shown) as an example for specific explanation. figure 1 Including antenna 1 and vehicle body 2.
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The invention discloses a traffic artery coverage optimum glancing angle obtaining method based on power lobe rotation. The method comprises the following steps of measuring the vertical distance l<v> between an antenna and a traffic artery and measuring an included angle theta<1> of the traffic artery and a longitude; calculating vertical distance space propagation loss and vehicle body penetration loss; calculating a vertical distance coverage main lobe power angle theta<max>, a power lobe offset function f(theta+deltatheta) and a critical glancing angle theta<GA>; and calculating a main lobe satisfaction coverage index minimum power angle theta<min> and an optimum glancing angle theta<GA _OPT>. The method is characterized by that the customer satisfaction degree is improved and the return on investment is improved.
Description
technical field [0001] The present invention relates to the technical field of communication coverage of traffic arteries, in particular to a traffic arterial coverage optimal sweep based on power lobe rotation based on the vertical distance between the antenna and the traffic arterial, the height of the antenna, and the penetration loss of the vehicle body corresponding to different incident angles. How to obtain the shooting angle. Background technique [0002] With the rapid development of the construction of high-speed railways, expressways and other traffic arteries, the communication coverage of the traffic arteries has become a hot topic in the industry, but there is no effective method for calculating the best grazing angle. , thus a method for obtaining the optimal grazing angle for traffic arterial coverage based on power lobe rotation is proposed. Since the power lobe emitted by the antenna is approximately elliptical, the coverage near the intersection of the ma...
Claims
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IPC IPC(8): H04W16/18H04W24/02H04W24/08
CPCH04W16/18H04W24/02H04W24/08Y02D30/70
Inventor 许光斌
Owner HUAXIN CONSULTATING CO LTD
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