通信学(工程)论文(6)

卫星通信的发展趋势总的发展方向是大容量、大功率、高速率、宽带、低成本、高发射频率、多转发器、多点波束和赋形波束，应用星上处理技术切换信号，处理信号等，21世纪的卫星直播电视(DBS—TV)、个人移动卫星通信、多媒体卫星通信、卫星音频广播、卫星网络电视等将会得到大量发展。VSAT业务范围不断扩大，深入到国民经济的各个领域，更加显示其经济和社会效益，Ka波段的应用使设备更加小型化，当然亦带来衰减严重的缺陷。光通信在卫星通信中的应用逐渐变得成熟可取，它要求精确的卫星控制技术，目前在国际上还处于研发阶段，预计不久将会进入实用阶段。

Satellite communications development trend of the general development direction of large capacity, high power, high speed, broadband, low cost and high transmitting frequency, the repeater, multipoint beam and informs the beam, the application of the star on the switching signal processing technology, signal processing, etc., satellite live TV in the 21st century (DBS, TV), personal mobile satellite communications, multimedia satellite communication, satellite audio broadcast, satellite network TV will be a lot of development. VSAT business scope expands unceasingly, deep into every field of national economy, more show its economic and social benefits, ka-band application further miniaturization of equipment, of course also brought attenuation serious defects. Optical communication application in satellite communication gradually become mature, it requires precise satellite control technology, the current in the world is still in the development stage, is expected soon will enter the practical stage.

我国的卫星通信事业亦在迅速发展，卫星通信的应用领域不断扩大，除金融、证券、邮电、气象、地震等部门外，远程教育、远程医疗、应急救灾、应急通信、应急电视广播、海陆空导航、连接互联网的网络电话、电视等将会广泛应用。我国的卫星发射技术，长征系列运载火箭领先世界，大推力、无污染、无毒的环保型火箭发动机我国已试验成功，这为发展我国的大型通信卫星乃至载人航天、探月工程创造了有利条件。

Satellite communication in China is in rapid development, expanding the application areas of satellite communication, in addition to the financial, securities, post and telecommunications, meteorology, earthquake and other departments, remote education, remote medical treatment, emergency disaster relief, emergency communications, emergency broadcasting, land, sea and air navigation, connect to the Internet network telephone, TV and so on will be widely used. Satellite launch technology in our country, leads the world in long march rockets, big thrust, pollution-free, non-toxic environmentally friendly rocket engine has been successful in our country, this for the development of our country's large communication satellites and manned spaceflight, lunar exploration project has created favorable conditions.

在市场上，由于该行业的发展速度太快，对人才的需求量又相当大，堪称“最容易找到好工作”的专业。所以对于未来，我们这些专业的学生，是很有动力的。

In the market, due to the development of the industry too fast, the demand for talent and is quite large, is a professional \"the easiest way to find a good job\". So for the future, we, the sophomore, is of great power.