调制形式 meaning in English
modulation format
Examples
- This paper investigates the induction motor full digital ac frequency conversion system , and develops an ac motor experiment platform based on dsp tms320f240 , the software and hardware implementation of the system is discussed in detail . the industry computer controls the dsp to output the space vector pulse width modulation voltage wave ( svpwm ) onto the induction motor . using this software we can view the state variable waveform on the pc and modify the variable in the dsp memory
本论文结合“基于dsp的交流电机实验控制系统”实际科研项目，开发出基于dsp的全数字交流电机实验控制平台，给出了该系统平台的软硬件设计方案，该系统使用工控pc机对下位机dsp进行实时控制，在dsp中依据选定的电机控制策略程序，发出空间矢量脉宽调制形式的电压波形，实现对交流电机变压变频控制；在上位机中能实时查看变量波形，并对dsp内存变量进行修改，在该平台上能方便的使用软件实现各种高性能的电机控制算法。 - With multi - modulation , the disadvantages of single - modulation ( such as fsk , psk and ppm ) can be eliminated . by taking the advantages of different modulations , the performance of range resolving , doppler resolving and low probability of intercept ( lpi ) of the signal can be improved
复合调制信号可以克服单一信号调制形式(如fsk 、 psk 、 ppm等)的缺点,实现信号之间的取长补短,提高距离、速度分辨力,提高信号的低截获概率( lpi )性能,是雷达理论与技术的发展方向。