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Laser ranging system based on low-frequency constant-exponential spectrum chaotic signal source and implementation method thereof

A technology of chaotic signals and chaotic systems, which is applied in radio wave measurement systems, measurement devices, electromagnetic wave reradiation, etc., can solve the problem of low precision, and achieve the effect of simple and accurate summation, simple structure, and improved precision

Inactive Publication Date: 2012-09-19
JIANGSU INST OF ECONOMIC & TRADE TECH
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Problems solved by technology

The accuracy of the pulse method for measuring distance is low, usually up to meters

Method used

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  • Laser ranging system based on low-frequency constant-exponential spectrum chaotic signal source and implementation method thereof
  • Laser ranging system based on low-frequency constant-exponential spectrum chaotic signal source and implementation method thereof
  • Laser ranging system based on low-frequency constant-exponential spectrum chaotic signal source and implementation method thereof

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Experimental program
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Embodiment Construction

[0027] 1 Structure and connection of laser ranging system

[0028] Comparing with Figure 2, 1 is the amplitude adjustment knob, 2 is the phase inversion control button, 3 is the constant exponential spectrum chaotic signal source, 4 is the power supply system, 5 is the synchronous control mechanism, 6 is the central processing unit, 7 is the laser modulation circuit, 8 Is the laser demodulation circuit, 9 is the crystal oscillator, 10 is the display unit

[0029] In the range finder, the constant exponential spectrum chaotic signal source 3 is connected to two control terminal buttons, namely the amplitude adjustment knob 1 and the phase inversion control button 2 . The amplitude adjustment knob 1 is connected with the power supply system 4 , and the phase inverting control button 2 is connected with the synchronous control mechanism 5 . The constant exponential spectrum chaotic signal source 3 is connected to the laser modulation circuit 7 , and the constant exponential spec...

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Abstract

The invention provides a laser ranging system based on a low-frequency constant-exponential spectrum chaotic signal source and an implementation method thereof. A low-frequency constant-Lyapunov exponential spectrum chaotic signal is adopted as a modulation signal, light is adopted as carrier, and laser modulation, demodulation, correlation detection and summation detection are carried out to obtain range information. The laser ranging system comprises the signal source, a summation detection channel, a correlation detection channel, a regulation control mechanism and a discriminant analysis system. The summation detection utilizes the phase inversion control characteristic of the constant-exponential spectrum chaotic system, while the amplitude regulation can obtain signal intensity needed by detection. The outputs of the correlation detection and the summation detection can be independent from each other, and the correlation detection and the summation detection can check each other. The invention also provides the laser ranging implementation method. The laser ranging system has the advantages of high range resolution, dual-channel detection and low cost. Since the low-frequency chaotic signal is utilized, the system can be extended to use other chaotic sources. The laser ranging system belongs to an electronic communication product, and can be widely applied in communication systems, photoelectric detection systems and the Internet of things.

Description

technical field [0001] The invention proposes a laser ranging system and its realization method based on low-frequency band constant exponential spectrum chaotic signal sources, and provides a principle block diagram and a corresponding organizational structure diagram of the laser ranging system. The product of the invention constructs two distance detection channels by virtue of the amplitude and phase regulation characteristics of the constant exponential spectrum chaotic system, realizes mutual verification, and can improve the accuracy of distance measurement through mathematical average. The structure of the system is simple, and the circuit manufacturing cost is low. [0002] This product belongs to communication electronic products, which can be widely used in communication systems and detection systems, and belongs to the application field of communication and detection systems. It can be used for the detection of space body size, such as length, area, and volume mea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/32
Inventor 李春彪王骏董李江朱焕强张卫沈威东
Owner JIANGSU INST OF ECONOMIC & TRADE TECH
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