3 results about "Radio fix" patented technology

The application discloses a kind of civil active emission echo radio positioning system and method, by oneself antenna array, oneself signal processor and power supply and the other party antenna, the other party signal processor and the other party power supply composition.Pass through oneself antenna array and emit radio signal, the other party antenna detects after active radio signal is emitted back oneself antenna array, respectively detects each antenna in oneself antenna array, with the distance or phase or signal frequency or propagation time difference of the other party antenna, after oneself signal processor calculation and using oneself power supply, and the other party signal processor calculation and using the other party power supply, can accurately position oneself and the other party spatial relative position.The radio positioning system is composed of oneself antenna array, oneself signal processor and power supply and the other party antenna, the other party signal processor and the other party power supply composition.Solve the problem that object between aircraft, automobile, ship, pedestrian etc.are not easy to position, improve information transparency, and have good promoting effect to the development of traffic industry.

The application discloses a kind of field exploration positioning modeling integrated systems based on radio positioning, core module includes data control module, transceiver control module and three-dimensional modeling module;Among them, data control module is used to start and execute positioning task, provides positioning information to three-dimensional modeling module;Transceiver control module responds to positioning control instruction, corrects positioning and generates positioning information and returns to data control center;Three-dimensional modeling module obtains the positioning information sent from data control module, realizes the real-time construction and update of map three-dimensional model in combination with map information;Core module is integrated on a circuit board and is integrally packaged, and constitutes field exploration positioning modeling integrated system.According to the above technical scheme, hardware integration and data center can be uniformly scheduled, multiple functions can be aggregated into a single system, which can significantly reduce equipment redundancy, ensure the accuracy of modeling and positioning, enhance the adaptability to field environment, and improve the precision of three-dimensional modeling.

This invention belongs to the field of radio positioning technology, specifically relating to a signal source positioning method based on a smart metasurface assisted by maximum parallelism. Utilizing the phase reconfigurability of the smart metasurface, a zero-mean phase coefficient is constructed. The user-access point direct channel matrix and the user-smart metasurface-access point cascaded channel tensor are separated, and parallelism operations are performed with the array response codebook matrix of the direct channel and the array response codebook tensor of the cascaded channel, respectively, to obtain the parallelism spatial spectrum of the user-access point and user-smart metasurface. The user's position is estimated by finding the angle corresponding to the peak of the spatial spectrum and using the least squares method. Compared to the traditional 2D-MUSIC method, which requires two-dimensional peak search, this invention employs two one-dimensional peak searches, significantly reducing computational and search complexity. Simultaneously, by setting time-varying smart metasurface phase coefficients, this invention maximizes the spatial degrees of freedom of the smart metasurface through spatiotemporal transformation.