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In order to use and evaluate the performances of stored Platform Inertial Navigation Systems (PINS), the repeatability of each PINS's calibrating parameter interval should be predicted at current or in future time points. Taking into account that the calibrating parameter repeatability of every PINS has different parameter distribution characteristics and the repeatability of Batch PINS in the same...
The difficulty of calibrating ADCPs has long been known. This paper describes an acoustic simulation approach to accomplish the functional and accurate calibration of ADCP. By the acoustic approach, the simulation system monitors the ADCP transmitted pulse, simulates the actual backscatter signal that an ADCP would receive, provides wide scope of profiling range and current velocity simulation, thereby...
In this paper a novel steam boiler using high temperature heat pipe based on energy storage by metal phase change materials is introduced. In a steam drum construction, composed of heat reservoir, high temperature heat pipe, boiler drum, frame, etc., the boiler incorporates solar radiation receiver, heat storage and steam generator into one unit, mainly used for direct steam generation in solar thermal...
Multi-components Linear Frequency-Modulated (LFM) signal of emitter recognition is everywhere in signal environments in practice, it is important to recognize it for electronic intelligence. To effectively detect and recognize multi-component LFM emitter signals, a new emitter signal analysis method based on the complex Independent Component Analysis(ICA), second-order time moments and Wigner-Hough...
In this paper a new scheme of the rapid calibration of the inertial platform system is introduced and some formulas are given. By this way, the platform errors can be calibrated rapidly using the navigation algorithm to correct the calibration parameters on a moving base. This scheme can give great help to test and use of the internal platform system.
To effectively detect and recognize multi-component Linear Frequency-Modulated(LFM) emitter signals, a multi-component LFM emitter signal analysis method based on the Independent Component Analysis(ICA) which was combined with the Wigner-Hough transform was proposed. The idea which was adopted to this method was the time-domain separation and then time-frequency analysis, and in the low SNR cases,...
A new geomagnetic navigation positioning system is proposed in this paper. Unlike those existing algorithms which rely on the anomaly magnetic field, the method presented in this paper selects the main magnetic field as navigation reference, thus is more adaptive. Meanwhile, it has the advantages of fast calculation, high accuracy as well as low storage requirement, which are theoretically verified...
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