1. Realize signal modulation and demodulation functions, including various types of modulation such as ASK (amplitude modulation), PSK (phase modulation), FSK (FM). 实现信号的调制解调功能,包括各类调制如ASK(调幅),PSK(调相),FSK(调频)。
2. Measure to receiver, HP8644A can provide amplitude modulation, frequency modulation and pulse modulation signal. 对于领受机测量,HP8644A可供给调幅、调频和脉冲调制信号。
3. Measure to receiver, HP8644A can provide amplitude modulation, frequency modulation and pulse modulation signal. 对于领受机测量,HP8644A可供给调幅、调频和脉冲调制信号。
4. As a result: the loss power depends on the excitation level and frequency. When the acceleration amplitude, velocity amplitude and displacement amplitude increase, loss power increases. 仿真结果表明:在控制激励频率时,颗粒阻尼器的损耗功率随激励加速度幅值、速度幅值以及位移幅值的增加而增加;
5. DC high voltage amplifier developed using amplitude modulation includes an amplitude modulator, a power amplifier, a step-up transformer, and a linear detector. 该文提出一种调幅式直流高压放大器,它由幅值调制、功率放大、变压器升压、线性检波组成主回路,通过电压负反馈构成闭环控制。