pulse communication
1.The system consists of computer system, DMX center gage reader, pulse meter, communication interface and the I 2C bus.
2.Delphi is adopted to program the whole software with assembly language embedded. Among them, Delphi is adopted to code user program, in which user can set test parameters, select test type and test voltage level, determine channels whether active or not to output trigger pulse. Serial port communication function is also included.
3.The optical pulse -position modulation (PPM) communication offers the advantage of high peak - power and low average - power, it is used in indoor wireless infrared local network.
4.The positive and negative frequency expressions of quasi-monochromatic optical fields of a pulse in fiber-optic communication and the positive and negative frequency forms of Fourier transformations and nonlinear Schr?dinger (NLS) equations are discussed.
5.As users increase and the bandwidth to pulse repetition frequency(PRF) decreases in UWB-MA communication,multiple-access interference(MAI) is expected to adversely affect system capacity and performance.
6.Its communications system is hardened to withstand the massive electromagnetic pulse of a nuclear burst,so that the communication network will function following an enemy attack and enable the NCA to direct a retaliatory strike.
7.Advancedpower electronic technology, microelectronics, computer and vector control technology used in VVVF Lift,and how to use the PWM pulse duration adjustment technology, double computer controlation, digitizer and serial communication technology to make system function more complete are introduced.
8.The self modification method of Baud Unit Pulse of the MCS 51 series of one board com-puter in the double computer communication os imtroduced to improve communication proficiency and quality by reducing and avoiding mistakes.
9.PPM(Pulse Position Modulation), as one of key technologies in the atmosphere laser communication, arouses more and more attention by the virtue of high power efficiency and strong resistance to interference.
10.The PPM(Pulse Positioning Modulation) of the BPL signal is the key problem to expanding the BPL channel as a communication channel.
