Chirp signal-based signal transmitting and receiving method for ultra wide band secret communication

A technology of signal transmission and confidential communication, which is applied in the direction of secure communication devices, digital transmission systems, electrical components, etc., can solve problems such as inability to ensure communication security, and achieve the effect of guaranteeing communication security

Inactive Publication Date: 2010-06-16
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem that the existing communication method cannot ensure the security of communication during communication, thereby providing a signal transmitting and receiving method for ultra-wideband secure communication based on Chirp signals

Method used

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  • Chirp signal-based signal transmitting and receiving method for ultra wide band secret communication
  • Chirp signal-based signal transmitting and receiving method for ultra wide band secret communication
  • Chirp signal-based signal transmitting and receiving method for ultra wide band secret communication

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specific Embodiment approach 1

[0024] Specific implementation mode 1. Combination figure 1 and figure 2 Illustrate this embodiment, the signal transmitting and receiving method of the ultra-wideband secure communication based on Chirp signal, it is realized by the following steps:

[0025] Launch process:

[0026] Step 1. Map the digital information output by the information source to obtain binary modulation information;

[0027] Step 2, the Chirp signal generator generates the pulse signal at the current moment according to the set parameters;

[0028] Step 3, using the binary mapping information obtained in step 1 to modulate the pulse signal in step 2 to obtain a modulated signal, and transmit the modulated signal;

[0029] Step 4. Judging whether the current time exceeds the time range set by the system, if the judgment result is no, then return to step 2; if the judgment result is yes, then end a signal transmission process;

[0030] Receiving process:

[0031] Step 5. Within the system setting ...

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Abstract

The invention discloses a Chirp signal-based signal transmitting and receiving method for ultra wide band secret communication, which relates to a signal transmitting and receiving method for the ultra wide band secret communication and solves the problem that a conventional communication method cannot ensure the security of communication in the communication. The Chirp signal-based signal transmitting and receiving method for the ultra wide band secret communication comprises a transmitting process and a receiving process, wherein the transmitting process comprises the following steps: mapping digital information output by an information source to obtain binary modulation information, and sending and emitting a pulse signal of a current time according to a set parameter by a modulation Chirp signal generator; and the receiving process comprises the step that: in a system set time, a receiving end samples the ith modulation signal, performs fractional Fourier transform and parameter adjustment on the ith modulation signal, adds and synthesizes the signals to obtain a synthesized signal and demodulates and outputs the synthesized signal. The method is suitable for the process of the ultra wide band secret communication.

Description

technical field [0001] The invention relates to a signal transmitting and receiving method for ultra-wideband secure communication. Background technique [0002] In today's society, information has become an important wealth of society, and people pay more and more attention to the confidentiality of information. The purpose of confidential communication is to face the attacker and ensure the security of the communication when the communication parties use the insecure channel to communicate. In the process of confidential communication, the communication dual transmitter does not want or allow the radio communication information sent by its own party to be intercepted by other parties, otherwise there is a risk of communication leaks, interference, or even destruction. As an important content in modern secure communication, the anti-interception property of information has attracted widespread attention. [0003] UWB wireless communication has broad application prospects ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/69H04L9/00
Inventor 吴宣利沙学军邱昕吴少川迟永刚白旭高玉龙沈清华
Owner HARBIN INST OF TECH
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