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Method for interception of impulse radio signal based on amplitude statistics

A technology of pulse radio and amplitude statistics, applied in electrical components, transmission systems, etc., can solve the problems of unable to intercept pulse radio signals, and achieve the effect of improving the effects of inability to intercept, large instantaneous amplitude, and low duty cycle

Inactive Publication Date: 2011-09-21
UNIV OF SCI & TECH OF CHINA
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to propose a method for intercepting pulsed radio signals based on amplitude statistics to solve the problem that traditional interception methods cannot intercept pulsed radio signals under low duty cycle conditions

Method used

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  • Method for interception of impulse radio signal based on amplitude statistics
  • Method for interception of impulse radio signal based on amplitude statistics
  • Method for interception of impulse radio signal based on amplitude statistics

Examples

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Embodiment 1

[0014] Embodiment 1: Interception of pulsed radio signals based on amplitude statistics after square operation and sampling

[0015] This embodiment adopts the interception of pulsed radio signals based on amplitude statistics after the square operation and sampling, with figure 1 The frame of interception and processing of pulsed radio signal based on amplitude statistics is given figure 1 . The specific processing process is: the radio waves in the space received by the antenna 0 are amplified by the amplification step 1 and sent to the filtering step 2 for filtering to obtain the received signal r(t), and the signal r(t) is obtained by the square operation 4 squared signal r e (t)=r 2 (t), at sampling step 3 for the squared signal r e (t) Sampling to obtain the squared sampling sequence r e (n), the squared sampling sequence r e (n) send to interception processing step 5 and carry out interception algorithm processing, promptly obtain decision result; Here the amplifi...

Embodiment 2

[0027] Embodiment 2: Interception of pulsed radio signals based on amplitude statistics based on sampling first and then square operation

[0028] This embodiment adopts the interception of pulsed radio signals based on amplitude statistics after the square operation and sampling, with figure 2 The frame of interception and processing of pulsed radio signal based on amplitude statistics is given figure 2 . The specific processing process is as follows: the radio waves in the space received by the antenna 0 are amplified by the amplification step 1 and then sent to the filtering step 2 for filtering to obtain the received signal r(t), and the sampling sequence r is obtained by the sampling step 3 ne (n)=r(nT), and then get the sampling sequence r after the square operation step 4 e (n), sent to the interception processing step 5 to carry out the interception algorithm processing, namely to obtain the judgment result; here the amplifier adopted in the amplification step 1 ca...

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Abstract

The invention discloses a capturing method of the pulse radio signal based on the amplitude statistics, characterized by using the characteristic of low duty ratio and large instantaneous amplitude of the pulse radio signal, the amplitude statistics is performed on the sampling sequence of the received signals, due to the low effective content of the point with small amplitude, the effect on the signal energy collection after extraction is small, but the entrance of the energy of a plurality of noise is effectively removed, thereby advancing the signal to noise ratio of the frequency analysis, improving the problems of the pulse radio signal which is not captured caused by the lower power spectral density, which solves the problems that the pulse radio signal is not captured under the lower duty ratio by the traditional capturing method.

Description

technical field [0001] The invention belongs to the technical field of wireless communication information security, in particular to a method for intercepting pulsed radio signals. Background technique [0002] The US "International Institute of Electronics and Electrical Engineers Letters" (IEEE Communication Letter) 1998 No. 2, pages 36-38, first proposed the concept of pulse radio. Pulsed radio signals have typical characteristics of low power spectral density. Pulsed radio communication is an important technical means of ultra-wideband communication, and has a wide range of applications in short-distance communication. [0003] Research on interception methods of pulsed radio signals is an important issue in the field of information security. At present, there is no open literature discussing the interception of pulse radio communication signals, and the research on the interception of pulse radio communication is still in a blank state. Contents of the invention [...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/7163H04B1/719
Inventor 尹华锐王俊王卫东卫国
Owner UNIV OF SCI & TECH OF CHINA
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