Design method of open type radio direction finding experiment platform

A technology of radio direction finding and experimental platform, which is applied in the direction of educational appliances, instruments, teaching models, etc., can solve the problems that students are not interested, do not understand the experimental principle, and the experimental teaching goals cannot be achieved, so as to stimulate learning interest and improve application ability Effect

Inactive Publication Date: 2021-03-05
CIVIL AVIATION UNIV OF CHINA
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Problems solved by technology

Compared with design and comprehensive experiments, verification experiments require students to think much less. Even under the influence of test-taking thinking, a considerable number of students can still get correct experimental results without understanding the experimental principles. Leading to the inability to achieve the experimental teaching objectives
[0006] (2) The content of the experiment is

Method used

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  • Design method of open type radio direction finding experiment platform
  • Design method of open type radio direction finding experiment platform
  • Design method of open type radio direction finding experiment platform

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Embodiment Construction

[0029]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] see Figure 1-5 , the present invention provides a technical solution: a design method of an open radio direction finding experimental platform, comprising the following steps:

[0031] Step S1. Acquisition of orientation signals: ADF-700 receives signals transmitted by ground NDB stations through loop antennas and vertical antennas to realize automatic orientation. If the experimental platform receives the NDB signal like the ADF, there will be two pro...

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Abstract

The invention discloses a design method of an open type radio direction finding experiment platform, which comprises the following steps of: S1, acquisition of direction distinguishing signal: the ADF-700 receives a signal transmitted by a ground NDB table through a loop antenna and a vertical antenna to realize automatic orientation; if an experiment platform receives NDB station signals like ADF, two problems exist: (1) students need to make antennas by themselves: through test verification, it is difficult to make loop antennas and vertical antennas with frequency ranges meeting requirements by themselves; the open type radio direction finding experiment platform designed by the invention can flexibly design experiment projects according to the characteristics of the experiment platformand the requirements of course teaching outline in practical teaching, and teachers can design different experiment projects for different teaching classes according to their own teaching arrangements. And even experimental projects with the same content but different difficulty requirements can be designed for students at different levels in the class, so that a very good 'differential teachingeffect' can be achieved.

Description

technical field [0001] The invention relates to the technical field of electrical experiments in colleges and universities, in particular to a design method of an open radio direction finding experiment platform. Background technique [0002] ADF (Automatic Direction Finder: Automatic Direction Machine) includes two parts: airborne equipment "ADF receiver" and ground equipment "NDB (Non-Directional Beacon: non-directional radio beacon) station". The ADF receiver receives the radio wave signal of the NDB station on the ground, and calculates the relative azimuth angle between the direction of the aircraft nose and the NDB station on the ground, and then calculates the heading of the aircraft. For civil aviation aircraft, ADF is an important auxiliary orientation device. [0003] ADF-700 automatic directional machine is the receiver of Collins (Collins) 700 automatic directional system. It adopts combined loop / vertical antenna and digital processing technology, and has high p...

Claims

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Application Information

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IPC IPC(8): G09B23/18
CPCG09B23/185G09B23/187
Inventor 郝磊
Owner CIVIL AVIATION UNIV OF CHINA
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