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Chirp slope multiple access

A technology of chirp and chirp, applied in the field of data capacity, which can solve the problems of restricted frequency band acquisition and license, rising cost of acquiring frequency, limited radio frequency, etc.

Inactive Publication Date: 2003-05-14
HARRIS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the amount of radio frequency available to the public is limited
Regulations may limit the acquisition and licensing of frequency bands
Additionally, the cost of acquiring frequency appears to have risen significantly in recent years

Method used

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  • Chirp slope multiple access
  • Chirp slope multiple access
  • Chirp slope multiple access

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] figure 1 A chirp radio communication system is shown comprising a plurality of transmitters 10 , which may be fixed or mobile, which communicate with one or more receiving stations or base stations 12 . Receiving station 12 communicates with central station 14 . This communication is via conventional telephone circuitry 13 . The central station 14 includes a console 16, a storage unit 18, and means for communicating 20 with other central stations 14 or external systems. The geostationary satellite system provides each base station 12 with a common clock signal 22 .

[0013] In operation, transmitter 10 periodically or aperiodically transmits beacons or signals to base stations 12 within range of its transmitting signal. The receiving station 12 receives the beacon signals from the transmitter 10 and possibly correlates these signals with the time of arrival. Information regarding received signals and their times of arrival may be communicated by receiving stations 1...

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PUM

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Abstract

A chirp radio communication system for increasing the number of transmitters, or users, that can be simultaneously accommodated in the communication system and the data capacity of the system without increasing frequency bandwidth. A system may include plural transmitters, receivers, and a central station for establishing chirp radio communications. Each receiver may discriminate between chirp radio transmitter types based on the differing chirp signal characteristics.

Description

technical field [0001] The present invention relates to a chirp radio communication system, and more particularly to increasing the number of transmitters or users that can be accommodated simultaneously in said communication system and the data capacity of a chirp radio communication system without additional radio frequency bandwidth. Background technique [0002] Many radio communication systems require predetermined radio frequency bands for communication. The frequency band required to accomplish communication depends on various factors. The main factor is the required data capacity of the communication system. In chirp radio communication systems, a typical data capacity bottleneck is the system's ability to correlate and detect chirp signals. [0003] In general, increasing the bandwidth of the frequency band increases the data capacity and allows more users to be accommodated simultaneously within the communication system. However, the amount of radio frequency av...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/69H04J13/00H04L5/12
CPCH04L27/103H04L5/06H04B1/69H04L5/12H04B2001/6912
Inventor 阿尔顿·沃什卡罗伯特·伯伊德
Owner HARRIS CORP