The system servo of fine tracking plays a key role in space laser communication.
精跟踪伺服系统是自由空间激光通信中的一项关键技术。
High power double-clad fiber amplifier is suitable for WDM, fiber CATV system and space laser communication.
双包层光纤放大器输出功率高,可用于密集波分复用系统、光纤CATV系统以及空间光通信系统中。
Acquisition, pointing and tracking (APT) is the key technology in free space laser communication with the characteristics of high precision and large bandwidth.
高精度、宽带宽的激光捕获、对准和跟踪(APT)技术是自由空间激光通信的关键技术。
Effect of atmospheric turbulence on laser communication system.
大气湍流对激光通信系统的影响。
Effect of the atmospheric turbulence on laser communication system.
大气湍流对激光通信系统的影响。
Atmospheric laser communication becomes one of the hot spots in recent years.
大气激光通信是近年来人们关注的热点问题之一。
Very accurate point angle is required in inter-satellites laser communication.
论证了星间激光通信需要极精确的指向角度。
The optical system of atmosphere laser communication is designed and analyzed in this thesis.
本文对大气激光通信光学系统进行设计与分析。
Free space laser communication is recognized as one of the top 10 pop telecom technologies in 2001.
大气激光通信曾被评为2001年十大热门电信技术之一。
In satellite-to-ground laser communication, the effect of atmosphere to laser beam is an important problem.
星地激光通信中,大气对激光束的影响是需要考虑的重要问题。
A wireless laser communication system with multiple transmitter and auto tracking is reported in this paper.
报道一种采用三个发射器、具有自动跟踪功能的无线激光通信系统。
The free space laser communication technology has an advantage of high speed, no disturbance and high security.
自由空间激光通信技术具有高码率、无干扰、高可靠性的优点。
The obtained results are theoretic reference to the improvement of the performance of underwater laser communication.
该研究结果对提高水下激光通信性能具有一定的理论参考价值。
According to the requirements on underwater laser communication, a scheme for real-time image acquisition is proposed.
根据激光水下通信的要求,提出一种实时采集图像的方案。
Using a beacon in the free space laser communication system is an important method of finishing the acquisition course.
采用信标光是完成卫星激光通信捕获过程的一种重要手段,信标光的远场分布对捕捉概率和捕获时间有较大的影响。
Optical modulation and demodulation implementation scheme in mobile atmospheric laser communication system are designed.
论文设计了移动大气激光通信系统中的光信号调制解调的实现方案。
The causes of fog, the relevant mathematical models and its influence on atmospheric laser communication system are analyzed.
分析了雾产生的原因、相关数学模型及其对大气激光通信系统的影响。
The results show that under severe environment robust laser communication from a satellite to a submerged platform can be achieved.
研究结果表明,在较恶劣环境条件下,利用星载激光系统可以实现对水下目标的良好通信。
Submarine laser communication system can be divided into two kinds, which are satellite laser communication and airborne laser communication.
激光对潜通信按激光器载体可分为星载激光通信系统和机载激光通信系统。
In mobile atmosphere laser communication, we often complete acquisition, tracking, pointing and communication by signal laser and beacon laser.
在移动大气激光通信中,通常采用信号光和信标光来完成信号的捕获、跟踪、定位以及通信。
Atmosphere laser communication is the technique which usually using laser as the carrier directly transmits voice, data and image in the space.
大气激光通信是指利用激光作为载波在空间直接进行语音、数据和图像信息传送的一种技术。
In this paper, we talk about the collection aperture's normalized arrival-of-angle fluctuation spectrum in Satellite-ground laser communication.
根据星地激光通信的实际状况,对接收孔径的归一化到达角起伏频谱进行了讨论。
Laser transmitting wavefront is near diffraction-limited in space laser communication. Wavefront measurement is the basis of system adjustment and testing.
空间激光通信中发射波面质量接近衍射极限,测量波面是调整和检验发射系统的依据。
The design of an acquisition, pointing and tracking (APT) control system is a critical factor for the overall - inter-satellite laser communication performance.
捕获瞄准跟踪(APT)控制系统的设计是影响整个星间光通信系统性能的重要因素。
The bit error rate of an atmospheric laser communication system is affected by not only vibration amplitude but also the aperture of optical transmitting antenna.
大气激光通信系统的误码率不仅受到振动时振幅大小的影响,而且受到光学发射天线孔径的影响。
The results of simulation show that RS coding and interleaving are fit for the channel of space laser communication, and can largely decrease bit error rate(BER).
计算机仿真结果表明,RS编码和交织技术非常适合空间光通信信道,能大大降低系统的误码率。
Based on the channel and detector characteristics of a submarine laser communication system, the output equation for the signal to noise ratio is derived and simplified.
根据激光对潜通信系统的信道特性和探测器特性,推导并简化了输出信噪比公式。
Based on the background of the research on the inter-satellite laser communication system, design and simulation of the laser beam pointing control algorithm have been done.
本文以空间光通信终端系统的研究为背景,进行了光束粗瞄控制算法的设计和仿真。
Pulse Position Modulation (PPM) is one of key technologies for laser communication in Atmosphere, which can reduces the output power of the laser and increases communication distance.
脉冲位置调制(PPM)是大气激光通信的关键技术之一,可以减少激光器的发射功率,增加通信距离。
Pulse Position Modulation (PPM) is one of key technologies for laser communication in Atmosphere, which can reduces the output power of the laser and increases communication distance.
脉冲位置调制(PPM)是大气激光通信的关键技术之一,可以减少激光器的发射功率,增加通信距离。
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