arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0705.2084cs.NI
收藏

智能交通系统的CDMA技术

CDMA Technology for Intelligent Transportation Systems

Rabindranath Bera, Jitendranath Bera, Sanjib Sil, Dipak Mondal, Sourav Dhar, Debdatta Kandar

摘要:

世界各地从事雷达和遥感系统开发的科学家和技术人员现在正试图以开发智能交通系统(ITS)的新应用的形式参与节省人力。世界统计数据显示,通过将这种无线雷达系统安装在汽车上,每年将使世界道路交通事故减少8-10%。必须正确选择能够解决开放道路中存在的严重干扰的无线技术。像扩频和分集接收这样的组合数字技术将在这方面有很大帮助。因此,选择基于FHSS的空间分集系统,其将利用具有80 MHz的可用带宽且无许可的5.8 GHz ISM频带附近的载波频率。为了有效设计,无线电信道是设计所基于的特征。在两种可用模式中,例如通信和雷达模式,雷达模式在验证接收到的代码后提供最近汽车的范围的有条件测量,从而确保测量的可靠性和准确性。为了使系统在同步模式下运行,我们已经启动了软件定义无线电方法,以获得最佳速度和灵活性。

英文摘要:

Scientists and Technologists involved in the development of radar and remote sensing systems all over the world are now trying to involve themselves in saving of manpower in the form of developing a new application of their ideas in Intelligent Transport system(ITS). The world statistics shows that by incorporating such wireless radar system in the car would decrease the world road accident by 8-10% yearly. The wireless technology has to be chosen properly which is capable of tackling the severe interferences present in the open road. A combined digital technology like Spread spectrum along with diversity reception will help a lot in this regard. Accordingly, the choice is for FHSS based space diversity system which will utilize carrier frequency around 5.8 GHz ISM band with available bandwidth of 80 MHz and no license. For efficient design, the radio channel is characterized on which the design is based. Out of two available modes e.g. Communication and Radar modes, the radar mode is providing the conditional measurement of the range of the nearest car after authentication of the received code, thus ensuring the reliability and accuracy of measurement. To make the system operational in simultaneous mode, we have started the Software Defined Radio approach for best speed and flexibility.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑