Digital variable frequency is a key technology of soft radio.
数字下变频技术是软件无线电中的关键技术之一。
A new high-performance digital trigger circuit of full-control-bridge based on CPLD is designed to the control system of the digital AC-AC variable-frequency.
针对全数字交交变频矢量系统设计了一种基于CPLD的新型高性能全控桥数字触发电路。
The technology of variable frequency speed governing was used in the driving system of the experiment stand. And the advanced stepping digital overflow valve was adopted in the part of loading.
该试验台的驱动系统采用交流变频调速技术，加载部分采用先进的步进式数字溢流阀进行加载。
The output of the FPGA is typically a waveform with a fixed-frequency, variable-duty cycle, which a counter and a digital comparator generate (Listing 1).
FPGA的输出是固定频率、计数器和数字比较器使占空比可变的典型波形(表1)。
The digital frequency meter to achieve the desired requirements of the variable-range measurement, measuring range 0.1Hz-9999MHz, accuracy up to 0.1Hz.
该数字频率计达到预期要求，实现了可变量程测量，测量范围0.1Hz—9999MHz，精度可达0。
The digital frequency meter to achieve the desired requirements of the variable-range measurement, measuring range 0.1Hz-9999MHz, accuracy up to 0.1Hz.
该数字频率计达到预期要求，实现了可变量程测量，测量范围0.1Hz—9999MHz，精度可达0。
应用推荐