It is introduction to purchase management of green laser pointer

The green green laser pointer is easy to be affected by the ambient temperature.
After using the inhibition of lead and lag and fuzzy adaptive PID method for coarse tracking servo unit of the system error, power spectrum, respectively, as shown. For the perturbation of the platform 1, the fuzzy adaptive PID Disturbance Rejection in the range [-100dB,-200dB], lead and lag method is disturbance rejection in the range [-80dB,-150dB]. For the perturbation of the platform 2, the fuzzy adaptive PID Disturbance Rejection in the range [-80dB,-160dB], lead and lag method is disturbance rejection in the range [-65dB,-140dB]. Low frequency component peak error in the time-domain diagram from the point of view, lead and lag methods 1mrad fuzzy adaptive PID difference of nearly 10 times.It is to revise and update the indices and parameters of green laser pointer 
The frequency range of Ka-band generally is 30/20GHz. The band has a wide available bandwidth Ka-interference (interference is not necessarily less), the device size small. Therefore, the Ka-band satellite communication systems for high-speed satellite communications, Gigabit super wideband digital transmission, high-definition television (HDTV), satellite news gathering (SNG), the VSAT business, direct to home (DTH) business and personal satellite communications and other new business to provide a new means. The shortcomings of the Ka-band rain attenuation larger, higher requirements for device and process. Tones of the Ka-band, Ka-user terminal antenna size is not constrained by the antenna gain, but subject to the ability to inhibit interference from other systems. It is introduction to purchase management of  green laser pointer .
Its Dongfanghong IV platform. East platform in recent years on the basis of the successful development of the East platform, space science and technology through technology upgrades and scientific exploration launch of a new generation of space satellite platform, will become China the next decade or so various types of large satellite payload platform. Substantial increase in the East platform capabilities: platform design life of 15 years, the use of full three-axis stabilized control, the total power output of 10.5 kilowatts, and has the ability to be extended to more than 10 kilowatts, can provide power for the payload of about 6 to 8 kilowatts, the maximum launch weight of the entire star up to 5200 kg, in-orbit position control and attitude control and reached the international advanced level.