研究目的
Investigating the implementation of a novel spectral modulation technique based on frequency-shift keying for high-speed hybrid telecommunication systems.
研究成果
The proposed spectral modulation technique based on frequency-shift keying demonstrates high immunity to fading effects in mm-wave wireless channels and potential for high data rates and spectral efficiency. Future research should focus on experimental validation and further optimization of the modulation scheme.
研究不足
The study is limited by the constraints of the SCRF spectral mask and the need for experimental testing to validate the simulation results. Future work is required to expand the number of applied pulses and advanced symbol coding techniques.
1：Experimental Design and Method Selection:
The study employs a spectral modulation technique based on frequency-shift keying of three wideband pulses with central frequency hopping in a desired sub-terahertz frequency range. Mathematical and simulation models of optimal pulses based on hyperbolic secant square function are used to maximize provided power.
2：Sample Selection and Data Sources:
The research utilizes simulation models developed in Matlab to evaluate the performance of the proposed spectral modulation technique.
3：List of Experimental Equipment and Materials:
The study involves the use of arbitrary waveform generators and high-speed optical fiber-wireless communication systems operating in UWB sub-terahertz frequency bands.
4：Experimental Procedures and Operational Workflow:
The modulation technique is implemented by shaping radio pulses to satisfy the regulations of the SCRF spectral mask, followed by convolutional encoding and symbol coding to increase bit rate and spectral efficiency.
5：Data Analysis Methods:
The performance is evaluated by calculating bit error rate (BER) for different values of signal-to-noise ratio and data rates, using simulation results to assess the technique's immunity to fading effects and error-free operation.
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