Ultraviolet light communication system based on SR digital signal processing technology

Abstract

The invention discloses an ultraviolet light communication system based on a SR digital signal processing technology. A signal processing module is developed, wherein a high speed floating point type DSP chip is taken as a core and a FPGA is a coprocessor. A DSP main processor mainly carries out modulation and demodulation on a signal. The FPGA coprocessor is responsible for digital filtering and data buffering after the data is collected. The system comprises an ultraviolet light transmitting antenna, an ultraviolet light source driving module, a signal processing module, an upper computer and an ultraviolet receiving antenna. The signal processing module is communicated with the upper computer through a serial port. The ultraviolet receiving antenna receives an ultraviolet light signal. The module converts the light signal into a voltage signal and transmits to the signal processing module. The ultraviolet light source driving module receives a control signal of a signal processing unit and drives the ultraviolet receiving antenna to emit an ultraviolet signal. The design in the invention satisfies requirements of industrialization, a practical ability and miniaturization. High-efficient transmission of a long distance and a large amount of data can be realized.

Description

technical field [0001] The present invention belongs to the field of ultraviolet light communication, and in particular relates to an ultraviolet light communication system based on SR digital signal processing technology, which is an ultraviolet light communication signal processing system with a high-speed floating-point DSP chip as the core and FPGA as a coprocessor. The operating temperature range of the system reaches -40°C to 85°C, which meets the requirements of industrialization, practicality and miniaturization, and can realize long-distance and efficient transmission of large amounts of data. Background technique [0002] As the nerve center of modern warfare, military communication is an important factor to improve the overall combat capability and plays a pivotal role in warfare. It can enable various fixed and mobile terminal facilities to transmit military information through various wired and wireless means. However, the existing communication methods have e...

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Problems solved by technology

However, the existing communication methods have encountered many difficulties in the development process. For example, wired communication (telephone, optical fiber communication) needs to be buried in advance, easy to be damaged, difficult to maintain, and cannot follow the troops to respond quickly and flexibly

Although radio communication has the characteristics of flexibility and mobility, there are problems such as being easily eavesdropped, interfered and detected, and it is not suitable for "electromagnetic silence" occasions

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