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Signal generation device and method

A signal generation and signal technology, applied in the field of communication, to achieve the effect of simple system structure and strong reconfigurability

Active Publication Date: 2021-06-04
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It is difficult to meet these requirements using conventional electrical methods. Microwave photonics is an effective way to solve these problems with the help of large bandwidth and high carrier frequency provided by photonic technology.
[0003] However, most of these systems can only generate a single type of microwave signal. Therefore, it is urgent to construct a device with simple structure and high reconfigurability that can simultaneously generate multiple types of digital-analog joint control microwave signals.

Method used

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Embodiment Construction

[0031] In order to make the purpose, features, and advantages of the application more obvious and understandable, the technical solutions in the embodiments of the application will be clearly and completely described below in conjunction with the drawings in the embodiments of the application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0032] see figure 1 , figure 1 It is a schematic structural diagram of a signal generating device provided in an embodiment of this application, and the signal generating device includes:

[0033] A light source 1, used to generate an optical carrier;

[0034] Two microwave sources 2 and 4, both of which are used to output continuous single-frequency microwave signals;

[...

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Abstract

The invention provides a signal generation device and method applied to the technical field of communication, and the device comprises a light source which is used for generating optical carriers, two microwave sources which are used for outputting continuous single-frequency microwave signals, two pulse signal generators which are used for generating electrical coding pulse signals, and two channel DC voltage sources. Each channel outputs stable direct-current voltage and is used for providing bias voltage for the dual-drive dual-polarization Mach-Zehnder modulator, and the dual-polarization dual-drive Mach-Zehnder modulator is used for modulating an optical carrier by using a continuous single-frequency microwave signal, an electrical coding pulse signal and the bias voltage to obtain an optical signal; the optical signal comprises at least one of a radio frequency-amplitude shift keying signal, a radio frequency-frequency shift keying signal, a radio frequency-fourth order amplitude modulation signal, a radio frequency-binary phase shift keying signal, a radio frequency-binary phase shift keying pulse signal, a radio frequency-quaternary phase shift keying signal and a radio frequency-multicarrier phase shift keying signal.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a signal generating device and method. Background technique [0002] With the rapid development of various civil and military systems, new requirements have been put forward for digital-analog joint regulation of microwave signals, such as higher frequency, larger frequency adjustment range and wider signal bandwidth. It is difficult to meet these requirements using conventional electrical methods. Microwave photonics is an effective way to solve these problems with the help of large bandwidth and high carrier frequency provided by photonic technology. [0003] However, most of these systems can only generate a single type of microwave signal. Therefore, it is urgent to construct a device with simple structure and high reconfigurability that can simultaneously generate multiple types of digital-analog joint control microwave signals. Contents of the inventi...

Claims

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Application Information

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IPC IPC(8): H04B10/54H04B10/524H04B10/556H04B10/2575
CPCH04B10/524H04B10/541H04B10/5561H04B10/5563H04B10/2575
Inventor 朱厦李伟王欣李明祝宁华
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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