Digital high precision dynamic cymoscope

A geophone and high-precision technology, applied in the field of digital high-precision dynamic geophones, can solve problems such as undetectable operations, and achieve the effects of simple manufacturing and debugging, good versatility, and small size

Inactive Publication Date: 2011-04-20
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This device can be applied to the needs of detection systems in general, but it cannot achieve accurate detection operations for ultra-long rising / falling edge pulses, which greatly inhibits the application of high-precision systems such as time difference direction finding and positioning in actual systems

Method used

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  • Digital high precision dynamic cymoscope
  • Digital high precision dynamic cymoscope
  • Digital high precision dynamic cymoscope

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Embodiment Construction

[0027] The scheme of the present invention is described in detail below in conjunction with accompanying drawing and embodiment: present embodiment is implemented under the premise of technical scheme of the present invention, has provided detailed implementation mode and concrete operation process, but protection scope of the present invention does not Limited to the following examples.

[0028] Such as figure 1 As shown, this embodiment includes: an analog-to-digital converter, a programmable logic gate array, a phase-locked loop, and a power supply module, wherein:

[0029] The analog-to-digital converter performs analog-to-digital conversion on the ultra-long rising / falling edge pulse signal input to obtain a digital sampling signal, and outputs it to the programmable logic gate array;

[0030] Programmable logic gate array realizes digital detection of ultra-long rising edge pulse signal, and outputs TTL digital logic waveform;

[0031] The phase-locked loop provides th...

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Abstract

A digital high-precision dynamic wave detector in the field of communications measurement control comprises: an analog-digital converter, a programmable logic gate array, a phase lock loop and a power module, wherein, the analog-digital converter performs analog-digital conversion for an input pulse signal of ultra-long rising / falling edge to obtain a digital sampling signal, which is then outputto the programmable logic gate array; the gate array performs digital wave detection for the pulse signal of the ultra-long rising edge to output TTL digital logic waveform; the phase lock loop provides a system clock for the analog-digital converter and the gate array; and the power module provides high stability DC power for the modules. The invention can provide stable reference signals for the measurement and synchronization of a back-end system and meanwhile has the advantages of high systematical integration, small volume, simple manufacture and debugging, stable and reliable performance, good versatility, etc.

Description

technical field [0001] The invention relates to a device in the field of communication measurement and control, in particular to a digital high-precision dynamic wave detector. Background technique [0002] During the reception process of the pulse modulation signal transmitted by the radar, due to the influence of multipath fading and the influence of nonlinear devices inside the radar receiver (such as amplifiers, mixers, etc.), the rising edge and Falling edge produces tailing phenomenon. In severe cases, the rising and falling edges of the modulated signal will exceed 1us. Therefore, a high-precision dynamic detection module needs to be equipped in the actual radar receiving and processing system. In fact, the high-precision dynamic detection technology is also the core technology of the long-baseline "time-difference direction-finding and positioning equipment" in the contemporary advanced passive radar. In order to improve the accuracy of direction finding by time-o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/32
Inventor 臧小刚宫新保凌小峰
Owner SHANGHAI JIAOTONG UNIV
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