High-speed scan method used for digital monitoring receiver

A high-speed scanning and receiver technology, applied in the field of high-speed scanning, can solve problems such as difficulty in capturing burst signals, low scanning efficiency, and limited functions, and achieve the effect of improving scanning search efficiency and saving scanning time overhead

Active Publication Date: 2014-12-10
ANHUI EGRETS ELECTRONICS TECH
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Problems solved by technology

[0004] The purpose of the present invention is to provide a high-speed scanning method for a multi-function digital monitoring receiver, which greatly improves the scanning speed of the monitoring receiver and solves the problem of the existing economical monitoring receiver in the wide frequency band. Difficulty in capturing burst sig

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  • High-speed scan method used for digital monitoring receiver
  • High-speed scan method used for digital monitoring receiver

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Embodiment Construction

[0030] A high-speed scanning method for digital monitoring receivers, which uses continuous tracking scanning method and fast Fourier transform method with large interval frequency hopping to realize dual-mode high-speed scanning, and predicts dual-mode high-speed scanning on the basis of user-set parameters. The scan time of the scan to obtain the optimal scan mode for this scan;

[0031] Such as figure 1 As shown, the continuous tracking and scanning method refers to the concept of small process and large process when scanning the frequency spectrum, so that the first local oscillator is always in the frequency tracking mode regardless of the resolution, and the A / D acquires the first The data of this earthquake, after DDC down-conversion, CIC decimation and FIR filtering are carried out on the data. At the same time, the best coupling relationship between the CIC decimation filter and the FIR filter is used to obtain high resolution bandwidth accuracy and excellent filter s...

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Abstract

The invention provides a high-speed scan method used for a digital monitoring receiver, which adopts a continuous tracking and scanning method and a fast Fourier transform method with large space frequency hopping and is capable of implementing dual-mode high-speed scanning. Before scanning, a system carries out estimation of scanning time through user setting and selects an optimal scan mode; an interrupt mechanism and a highly-efficient mode of storing/taking a ping pong are introduced in inner data storage and interaction processes, so that continuous data storage and transmission can be implemented. By adopting the highly-efficient scan mode and the data processing manner, the expenditure of the scanning time is saved, and the scanning search efficiency is greatly improved. The high-speed scan method has the advantages of economy, high efficiency and the like, and is very suitable for economical monitoring receivers or systems.

Description

technical field [0001] The invention relates to the fields of radio monitoring and wireless communication, in particular to a high-speed scanning method for a multifunctional digital monitoring receiver. Background technique [0002] With the development of wireless communication technology, there are more and more management and monitoring problems caused by wireless communication. For example, the radio management department needs to monitor and monitor the reasonable use of spectrum resources, and the security protection department needs to judge and eliminate interference sources and illegal transmitters. All of these need to use the monitoring receiver to scan the signals in the communication frequency band and judge and deal with abnormal frequency points. However, for the monitoring of some broadband signals and burst signals, ordinary receivers have the problems of low scanning efficiency and the difficulty of capturing burst signals. It is necessary to use high-spe...

Claims

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Application Information

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IPC IPC(8): H04B17/00
Inventor 万耿华
Owner ANHUI EGRETS ELECTRONICS TECH
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