Broadband 2ASK signal generating circuit in cognitive underwater acoustic communication

The invention discloses a broadband 2ASK signal generating circuit in cognitive underwater acoustic communication. The broadband 2ASK signal generating circuit comprises a core processor, a voltage-controlled oscillation circuit, a differentiating circuit, a NOT gate shaping circuit, a driving signal generating circuit, a power amplifier circuit, a coupling circuit, and an underwater acoustic transducer. By adopting a voltage-controlled oscillation and analog signal processing technology, under a condition of not changing a structure and a driving capacity of a driving signal generating circuit, frequency conversion of an underwater acoustic 2ASK signal in a broadband is realized by adjusting synchronizing signal frequency, and a hardware foundation is provided for the dynamic spectrum access technology of the cognitive underwater acoustic communication system. 本发明公开了种认知水声通信中的宽频2ASK信号产生电路，包括依次连接的核心处理器、压控振荡电路、微分电路、非门整形电路、驱动信号产生电路、功放电路、匹配电路、水声换能器。使用压控振荡和模拟信号处理技术，在不改变驱动信号产生电路结构和驱动能力的情况下，通过调整同步信号频率来实现水声2ASK信号在较宽频