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A Digital Domain Multi-Signal Synthesis Method

A synthesis method and digital signal technology, applied in transmission monitoring, electrical components, transmission systems, etc., to achieve the effect of high signal fidelity and consistency

Active Publication Date: 2022-07-29
成都云溯新起点科技有限公司
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Problems solved by technology

[0005] Existing signal synthesis methods are mainly aimed at signals with preset formats, and there are certain limitations in the fidelity and complexity of synthesizing broadband signals, as well as the universality of application scenarios.

Method used

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  • A Digital Domain Multi-Signal Synthesis Method

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Embodiment Construction

[0051] Below in conjunction with the appendix of the present invention figure 1 , clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0052] Existing signal synthesis methods are mainly aimed at signals in preset formats, and have certain limitations in terms of the fidelity and complexity of synthesizing wideband signals, as well as the universality of application scenarios.

[0053] A multi-signal synthesis system in the digital domain. Its composition mainly includes three parts: sample editing module, simulation signal generation module, noise fitting and signal synthesis module.

[005...

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Abstract

The invention relates to a digital domain multi-signal synthesis method, which belongs to the technical field of complex communication signal simulation and communication equipment testing, and can generate various types of signals within one signal bandwidth, including FDMA, TDMA, CDMA and other signals; The generated signal and the collected actual signal samples are synthesized to form a complex broadband multi-carrier signal with high signal fidelity, which is convenient for simulating a variety of signal scenarios; noise fitting, linear resampling, frequency domain filtering and other technologies are used. During the multi-carrier synthesis, the noise of the simulated signal and the actual sampled signal is calibrated to maintain the consistency of the noise floor of the wideband signal.

Description

technical field [0001] The invention belongs to the technical field of complex communication signal simulation and communication equipment testing, and in particular relates to a digital domain multi-signal synthesis method. Background technique [0002] When testing communication equipment, it is necessary to generate multiple types of signals in different test scenarios to meet the test requirements; while for complex electromagnetic environment simulation, in order to simulate the real situation as much as possible, multiple carriers need to be generated within a bandwidth. The pattern of each carrier is different. In response to such problems, domestic and foreign research institutions and major companies have carried out extensive research on this problem, and there are also some patents in this field. [0003] For example, Chinese Patent Application No. CN201710769091.9 discloses a fast multi-target signal synthesis method. This patent is mainly used in the field of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/00H04B1/00
CPCH04B17/0085H04B1/0017H04B1/0042
Inventor 贺荣华万坚涂世龙
Owner 成都云溯新起点科技有限公司
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