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Non-contact fuze electromagnetic signal single-channel receiver system

An electromagnetic signal, single-channel technology, applied in the field of communication, can solve the problem of limited reaction radius of the trigger fuze, etc., and achieve good anti-interference and reliability, high application value, and low power consumption

Inactive Publication Date: 2018-03-09
张桂春
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AI Technical Summary

Problems solved by technology

[0003] The reaction radius of the traditional trigger fuze is limited. In order to effectively capture the electromagnetic signal of the active fuze of the target, and then take active measures quickly, a non-trigger fuze electromagnetic signal single-channel receiver system is designed, which can detect electromagnetic signals under low signal-to-noise ratio. Perform amplification, filtering, wave detection, automatic gain control and other adjustments to make the receiver output signal meet the needs of back-end processing

Method used

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  • Non-contact fuze electromagnetic signal single-channel receiver system
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  • Non-contact fuze electromagnetic signal single-channel receiver system

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with drawings and embodiments.

[0021] Such as figure 1 , 2 , The AC amplifier adopts two-stage amplification, and the operational amplifier adopts a dual operational amplifier LM358. Because LM358 is more commonly used, and it is more convenient to design, the overall magnification of the amplifier should be greater than 50,000 times. Since the effective signal frequency range of the fuze receiver is 100Hz~2000Hz, the passband of the internal filter of the receiver should be designed as 100Hz2000Hz. And because the fluctuation of the input signal is relatively large, the output signal is likely to exceed the range of 5 V, so it is necessary to add an AGC with a dynamic range of > 25 dB in this circuit.

[0022] Such as image 3 , The band-pass filter circuit is two 8-order band-pass filter stages connected together, using an 8-order high-pass filter (S3529) and an 8-order low-pass filter (S3528) ...

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Abstract

The invention provides a non-contact fuze electromagnetic signal single-channel receiver system which is applied to the communication field. The system is composed of an alternate current amplifier, abandpass filter circuit, a detecting circuit and an automatic direct current amplification gain control circuit. The designed non-contact fuze electromagnetic signal single-channel receiver system has the advantages that the performance is stable, parameter indexes meet the design requirements, and the high application value is achieved; and the circuit structure is compact, the size is small, working is table, the power consumption is low, the working efficiency is improved, and the good anti-interference performance and reliability.

Description

Technical field [0001] The invention relates to a non-trigger fuze electromagnetic signal single-channel receiver system, which is suitable for the communication field. Background technique [0002] The torpedo non-trigger fuze refers to an automatic device that can automatically cause the explosion of the mine head charge without contacting the hull when the torpedo passes within a certain distance from the target ship. It is composed of modern torpedoes. One of the main components is a proximity fuze belonging to weapon fuzes. Due to the requirements of the ship's own protection, the physical field of the ship must be eliminated to a certain small value. Therefore, from the perspective of improving the operational reliability of the fuze, it is better to develop an active fuze than a passive fuze. [0003] The reaction radius of the traditional trigger fuze is limited. In order to effectively capture the electromagnetic signal of the active fuze of the target, and then ta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/06H04B1/16
CPCH04B1/06H04B1/16
Inventor 张桂春
Owner 张桂春
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