[author_cn_name].[cn_title][J].空军工程大学学报:自然科学版,[year_id],[volume]([issue]):[start_page]-[end_page] 功分热态微波信号的导航测距测角方案及性能分析-Navigation Ranging and Angle Measurement Scheme by the Power Divided Thermal Microwave Signals and Performance Analysis
文章摘要
朱浩男1,吴德伟1,苗强1,李响1,夏兆益2.功分热态微波信号的导航测距测角方案及性能分析[J].空军工程大学学报:自然科学版,2019,20(3):46-51
功分热态微波信号的导航测距测角方案及性能分析
Navigation Ranging and Angle Measurement Scheme by the Power Divided Thermal Microwave Signals and Performance Analysis
  
DOI:
中文关键词: 关联测距  热态微波信号  量子二阶关联  导航测角
英文关键词: correlated ranging  thermal state microwave signal  quantum second-order coherence  navigation angle measurement
基金项目:国家自然科学基金(61573372;61603413)
作者单位
朱浩男1,吴德伟1,苗强1,李响1,夏兆益2 1. 空军工程大学信息与导航学院,西安,7100772. 济南市儿童医院,济南,250021 
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中文摘要:
      根据光学中应用热光场的二阶关联特性,得到与纠缠光场相类似的关联成像、时钟同步和关联测距等方法,将其延伸至微波频段,利用热态微波信号进行二阶关联导航测距测角。热态微波信号用于二阶关联测距测角的过程为,首先用功分器对制备的热态微波信号分成相同功率的两路,并将功分后的2路热态微波信号通过两个天线发射,然后在接收端对2路信号进行实时功率测量,对测得的功率波形进行相关运算,通过对关联峰值的提取,计算出2路信号传播的距离差,进而应用干涉式测角原理推导出目标方位角信息。通过实验和仿真方法对热态微波信号的导航测距和测角方案进行了分析验证,利用热态微波场的真随机特性,能够解决以往无线电导航定位中由于信号周期性引起的整周模糊问题,并且拥有更好的抗噪性能、抗多径能力,使定位精度得到提高。
英文摘要:
      According to the second order coherence of thermal light applied in optics, such as associated imaging, clock synchronization, and correlated ranging, etc. under condition of extending the knowledge mentioned above into the microwave frequency band, thermal microwave signal can be utilized for carrying out the second-order coherence navigation ranging and angle measurement. The process of the thermal microwave signals based ranging and angle measurement by using second order coherence reads as follows. First of all, a power splitter is utilized for splitting the prepared thermal microwave signal into two equal power paths, and two thermal microwave signals are transmitted through two antennas. At the receiving end, the real time power of two signals is measured by signal receiver, then the correlation operations on the measured power waveforms are made. Through the extraction of correlation peaks, the distance difference between the two channels of signal propagation is calculated, then the target azimuth information is derived from the principle of interferometric angle measurement. The result shows that due to the truly random nature of the thermal microwave signals, the problem of integer ambiguity caused by periodicity of signals in traditional radio navigation positioning is solved. And the anti noise performance, and the anti multipath capability ate better, and the positioning accuracy is improved.
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