Design And Implement Of The Digital Verification Platform For SNCK Communication Systems

With the communication capacity demand and electromagnetic spectrum resourcecontradiction between supply and demand is soaring, there was a variety of advancedcommunication theory and signal processing technology to improve the signal channeladaptive capacity and spectrum resource utilization was produced. The single frequency wavedigital modulation technology is a new technology to improve the utilization ratio ofspectrum.This paper introduced a new technology named Sine Non-linear Chirp Keying (SNCK)through analyzing the feature of VMSK, Sine like-VMSK, VWDK and VMCK, and analyzedthe performance of SNCK communication system with MATLAB. Finally, this paper verifiedthe performance of SNCK communication system through a hardware platform.Through the simulation of MATLAB software, this paper analyzed SNCK digitalmodulation technology energy concentration and other technical characteristics, and chose theappropriate technical parameters to construct the SNCK communication system and presentedthe theory of the BER performance.This paper constructed SNCK communication system verification platform throughdesigning digital modulation hardware platform referencing to the idea of software radiodesign and corresponding computer software.This paper utilized the method named Box-Muller to generated AWGN and constructedhardware platform to simulate the AWNG channel. Through signal detection and estimationtheory to carry on the analysis, and presented SNCK communications system mathematicalmodel, then designed the corresponding FPGA program according to the mathematical model.Finally, this paper tested the SNCK signal by physical method, and presented the BER ofthis SNCK communication system, then compared with the theoretical SNCK communicationsystem performance, verified actual application performance of SNCK.