Self-synchronizing pulse ultra-wideband signal baseband modulation circuit and demodulation circuit

A pulsed ultra-wideband, signal baseband technology, applied in electrical components, transmission systems, etc., can solve problems such as difficulty in baseband synchronization of pulsed ultra-wideband transceivers, and achieve the effect of improving spectrum utilization efficiency

Active Publication Date: 2022-06-21
TSINGHUA UNIV
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Problems solved by technology

[0004] In order to solve the above technical problems, the present invention provides a self-synchronizing pulse ultra-wideband signal baseband modulation circuit and demodulation circuit, under the premise of not too much loss of energy utilization , through a simple structure circuit to solve the problem of difficult baseband synchronization of pulse UWB transceivers

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  • Self-synchronizing pulse ultra-wideband signal baseband modulation circuit and demodulation circuit
  • Self-synchronizing pulse ultra-wideband signal baseband modulation circuit and demodulation circuit
  • Self-synchronizing pulse ultra-wideband signal baseband modulation circuit and demodulation circuit

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Embodiment Construction

[0035] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for description purposes, and cannot be interpreted as indicating or implying relative importance or the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0036] The "plurality" mentioned in this embodiment refers to two or more. "And / or", which describes the association relationship of the associated objects, indicates that there can be three kinds of relationships, for example, A and / or B, which can indicate that A exists alone, A and B exist at the same time, and B exists alone. Words such as "exemplary" or "such as" are used to denote an example, illustration, or illustration, are intended to present the relevant concep...

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Abstract

The invention provides a self-synchronizing pulse ultra-wideband signal baseband modulation circuit and demodulation circuit, and the baseband modulation circuit comprises an edge trigger pulse generator which is used for generating a synchronous pulse which is based on a trigger signal and a delay trigger signal and has a fixed pulse width; the pulse generator based on the delay chain is used for generating a modulation method based on on-off keying, a data pulse which has a preset delay interval with the synchronization pulse and has a preset pulse width; the pulse synthesis unit is used for synthesizing the synchronization pulse and the data pulse to generate a self-synchronization pulse ultra-wideband signal; in the time domain, the pulse width of the data pulse is far larger than the pulse width of the synchronization pulse, and in the frequency domain, the data pulse is distributed on the two sides of the synchronization pulse in a frequency hopping mode. The baseband demodulation circuit is used for detecting a synchronization pulse and a data pulse, not only realizes baseband synchronization with a transmitter, but also improves the anti-noise performance of a receiver.

Description

technical field [0001] The invention relates to the field of low-power wireless communication, in particular to a self-synchronizing pulse ultra-wideband signal baseband modulation circuit and a demodulation circuit. Background technique [0002] The pulsed ultra-wideband signal is based on the time-frequency domain transformation principle. The narrower the pulse of the signal in the time domain, the wider the bandwidth in the frequency domain. The data is generated by modulating the physical parameters of the short pulse, such as amplitude, phase, position, etc. Ultra-Wideband RF Signals. The advantage is that the circuit can save system power consumption through intermittent operation, improve system energy utilization, and is suitable for the field of low-power wireless communication. [0003] Due to the extremely narrow pulse width of UWB pulsed signals, baseband synchronization between transmitter and receiver is difficult. In order to solve the problem of difficult ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/00H04B1/40H04B1/7156H04B1/717H04B1/7183H04B1/719
CPCH04B1/0028H04B1/40H04B1/7156H04B1/717H04B1/7183H04B1/719Y02D30/70
Inventor 李宇根汪博闻王志华
Owner TSINGHUA UNIV
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