New Sales Strategy of green laser pointer

The workshop will draft a report as per the quality analysis data of green laser pointer . Theoretical calculations and simulation results show that, H2PPM modulation is more suitable for mobile atmospheric laser communication between vehicles. According to atmospheric laser communication between a moving vehicle characteristics and requirements of the modulation, and modulation as the basis for selection. It can be seen from Table 1, the vehicle mobile communication atmosphere between the laser made of a high bit error rate requirements, and require energy efficiency as high as possible, but less demanding on bandwidth. Therefore, the integrated all of the above modulation, H2PPM more in line with their requirements. First, H2PPM lowest packet error rate, and because it's the symbol length is fixed, you can eliminate the error accumulation. In addition, compared with DPPM and PPM, H2PPM start with a specific sequence of symbols, so the receiver does not require symbol-level synchronization, reducing system complexity. UAV's role in the war have attracted worldwide attention, in peacetime, but also an important means of gathering intelligence. Detection and tracking of military UAVs as an important issue. As materials and other reasons, it is difficult to detect radar UAV [18]. The use of unmanned aerial vehicles over the over the top when it has the greatest reflection of laser cross-section (LCS) and only a very small laser vertically upward atmospheric attenuation principle. The company has finished the price negotiation of green laser pointer with the customer.
The use of glow discharge gas laser atmospheric transmission of laser communications, advanced means of communication in modern atmospheric transmission of laser communications demonstration instrument. For laser communications to transmit information is loaded in the process of laser radiation, said laser modulation, the modulated laser from the reduction of the load information in the course of said laser demodulation. As the light detector in direct response to changes in light intensity, the laser intensity modulation with modulation and more. Instruments used in current modulation is based on technology-based direct intensity modulation, the modulation signal is sinusoidal, audio, video baseband signal, modulated laser for continuous wave oscillations [14], the expression is: where I (t) as light intensity, A0, for the laser oscillation amplitude, angular frequency, Kp is the proportional coefficient, a (t) of the modulated signal. He-Ne laser modulation current of the internal mechanism is more complex, He-Ne laser by solving a small AC component of the rate equation, the discharge current under a small sinusoidal AC component of i-mode output optical power and an AC component of W's relationship. Formula shows that the W / i directly with the DC discharge current (operating point) i0, f the modulation frequency. With laser 9 internal parameters, these parameters are related. Formula and tests show that the operating point i. Determined, the current modulation is small, the modulated laser waveform and the discharge current waveform has an approximate linear relationship. Forced through the circuit to the signal modulation to the laser discharge current on the output can be modulated by the signal intensity changes in the law. Laser output light intensity modulation frequency and modulation current, the broadband signal transmission, the effect of laser modulation frequency to compensate.