笙科A7102高频芯片数据手册英文版， 可工作在315MHZ,433MHZ,868MHZ,915MHZ.,AMIC A7102 high-frequency chip data sheet in English, can work in 315MHZ, 433MHZ, 868MHZ, 915MHZ.

SI4432无线传输模块，可用于无线传输数据行业。无线呼叫系统，无线识别装置，无线环境检测模拟装置-The SI4432 wireless transmission module can be used to transmit data wirelessly industry. Wireless call system, wireless identification devices, wireless simulation environment detection device

融合小波能谱熵和支持向量机ＳＶＭ的特点提出了基于小波能谱熵的ＳＶＭ故障诊断方法． 利用转子试验台对转子典型振动故障进行模拟并采集振动数据提取其振动信号的小波能谱熵作为特征向 量-Fusion wavelet energy entropy and support vector machine SVM is proposed based on the characteristics of wavelet energy entropy SVM fault diagnosis method. U