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Method for navigation positioning by use of digital frequency modulation broadcasting

A technology of FM broadcasting, navigation and positioning, which is applied in the field of navigation and positioning, which can solve the problems of high cost of the receiver and the inability of single-channel TV to perform positioning, and achieve the effects of small bandwidth, easy promotion, and low cost

Active Publication Date: 2014-03-12
SHENZHEN SIKAIWEI ELECTRONICS CO LTD
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AI Technical Summary

Problems solved by technology

After the development of digital terrestrial wireless TV broadcasting technology, some people also proposed a method for wireless positioning based on terrestrial digital wireless TV broadcasting, but because single-channel TV cannot be used for positioning, and the TV signal is relatively wide, and multiple channels are received from different transmission towers at the same time. TV signal receivers are expensive, so they have not been popularized yet

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  • Method for navigation positioning by use of digital frequency modulation broadcasting
  • Method for navigation positioning by use of digital frequency modulation broadcasting
  • Method for navigation positioning by use of digital frequency modulation broadcasting

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Embodiment Construction

[0048] The invention relates to a method and system for navigation and positioning by using digital FM broadcasting.

[0049] figure 1 It is a schematic diagram of a system for navigation and positioning using digital FM broadcasting according to the present invention. The system for navigation and positioning using digital FM broadcasting according to the present invention includes at least a plurality of FM broadcasting transmitters A1-A3 and one FM broadcasting receiver A0. While the FM receiver receives the signal from the FM broadcast transmitter, it may also receive signals from navigation satellites such as figure 1 Signals from GPS satellites A4 and A5. Typically, in order to monitor and improve the performance of the system positioning, a position-known reference receiver A10 is also included. In addition to receiving signals from FM broadcast transmitters (can also receive signals from navigation satellites such as GPS), A10 is connected to FM broadcast transmitte...

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Abstract

The invention discloses a method for navigation positioning by use of digital frequency modulation broadcasting and belongs to the field of wireless navigation. The method comprises the following steps: realizing time synchronization among frequency modulation broadcast transmitters; the frequency modulation broadcast transmitters carrying wireless signals RF(t) whose navigation messages can be used for range finding; the frequency modulation broadcast receivers receiving wireless signals RF(t) broadcast by the multiple frequency modulation broadcast transmitters and parsing the navigation messages contained in the RF (t); and the frequency modulation broadcast transmitters using the navigation messages and the signals of themselves to perform positioning solution so as to obtain positions of themselves. Compared to the prior art, the method provided by the invention has the following advantages: the emission power of the frequency modulation broadcast transmitters is large, the indoor coverage capability is higher compared to space-based navigation and space-based navigation enhancement technologies; and the frequency modulation broadcasting bandwidth is small, and the receiver complexity is low, therefore, the cost is lower and the popularization is easier.

Description

technical field [0001] The invention relates to a navigation and positioning method and system, in particular to a method and system for using digital FM broadcasting for navigation and positioning, and belongs to the technical field of wireless navigation. Background technique [0002] At present, the digitization process of broadcasting and television all over the world has been preliminarily completed. Digital terrestrial TV and mobile TV have entered a stable development stage, while the digitalization of cable TV has been commercialized for many years. Digitalization has brought higher-quality program production, transmission and reception, and at the same time, enabled users to enjoy a better user experience. When the digitalization of film, TV, mobile multimedia and many other media has achieved remarkable results, the digitalization of audio broadcasting seems to be relatively lagging behind, but this also brings a development opportunity, that is, the digitalizatio...

Claims

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Application Information

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IPC IPC(8): G01S19/29
CPCG01S19/48G01S19/49
Inventor 陈曦柳寒冰张光华
Owner SHENZHEN SIKAIWEI ELECTRONICS CO LTD
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