Design and anaylsis of transfer aligment algorithms

Download

index.pdf

Date

2005

Author

Yüksel, Yiğiter

Metadata

Show full item record

Item Usage Stats

364
views

138
downloads

Transfer Alignment is the process of simultaneously initializing and calibrating a weapon inertial navigation system (INS) using data from host aircraft̕s navigation system. In general, this process is accomplished by calculating the difference of navigation solutions between aircraft and weapon INSs to form observations which are then used in a Kalman filter to generate desired estimates. Numerous techniques about the problem of transfer alignment exist in the literature. In this thesis, those techniques that can be applied in the presence of elastic motion of aircraft wing were analyzed. Several transfer alignment algorithms each of which process different measurement types were designed and implemented. In order to evaluate the performance of implemented algorithms under realistic conditions, a transfer alignment simulation environment was developed. Using this simulation environment, the advantages and disadvantages of each algorithm were analyzed and the dependence of transfer alignment performance on Kalman filter system model, aircraft maneuvers and alignment duration were investigated.

Subject Keywords

Electrical engineering.

URI

http://etd.lib.metu.edu.tr/upload/12605936/index.pdf
https://hdl.handle.net/11511/14878

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Modelling and noise analysis of closed-loop capacitive sigma-delta mems accelerometer Boğa, Biter; Külah, Haluk; Department of Electrical and Electronics Engineering (2009) This thesis presents a detailed SIMULINK model for a conventional capacitive Σ-Δ accelerometer system consisting of a MEMS accelerometer, closed-loop readout electronics, and signal processing units (e.g. decimation filters). By using this model, it is possible to estimate the performance of the full accelerometer system including individual noise components, operation range, open loop sensitivity, scale factor, etc. The developed model has been verified through test results using a capacitive MEMS accelero...
Linear prediction for single snapshot multiple target doppler estimation under possibly moving radar clutter Öztan, Baha Baran; Tanık, Yalçın; Department of Electrical and Electronics Engineering (2008) We have devised a processor for pulsed Doppler radars for multi-target detection in same folded range under land and moving clutter. To this end, we have investigated the estimation of parameters, i.e., frequencies, amplitudes, and phases, of complex exponentials that model target echoes under radar clutter characterized by antenna scanning modulation with observation limited to single snapshot, i.e., one burst. The Maximum Likelihood method of estimation is presented together with the bounds on estimates, ...
Robust set-valued estimation and its application to in-flight alignment of sins Seymen, Niyazi Burak; Demirekler, Mübeccel; Department of Electrical and Electronics Engineering (2005) In this thesis, robust set-valued estimation is studied and its application to in-flight alignment of strapdown inertial navigation systems (SINS) with large heading uncertainty is performed. It is known that the performance of the Kalman filter is vulnerable to modeling errors. One of the estimation methods, which are robust against modeling errors, is robust set-valued estimation. In this approach, the filter calculates the set of all possible states, which are consistent with uncertainty inputs satisfyin...
Design and implementation of low phase noise phase locked loop based local oscillator Bölücek, Muhsin Alperen; Yıldırım, Nevzat; Department of Electrical and Electronics Engineering (2009) In this thesis, a low phase noise local oscillator operating at 2210 MHz is designed and implemented to be used in X-Band transmitter of a LEO satellite. Designed local oscillator is a PLL (Phase Locked Loop) based frequency synthesizer which is implemented using discrete commercial components including ultra low noise voltage controlled oscillator and high resolution, low noise fractional-N synthesizer. Operational settings of the synthesizer are done using three wire serial interface of a microcontroller....
Milimeterwave FMCW radar design İçöz, Dilşad; Hızal, Altunkan; Department of Electrical and Electronics Engineering (2009) In traffic radar system, Frequency Modulated Continuous Wave (FMCW) will be used since these radars are preferred in short distance and high range resolution systems. The system to be constructed is not only a system operating with Doppler principle and detection of speed; on the contrary a functional radar is planned to be produced. In various traffic radars in use, Doppler shift constituted by the targets causing high reflection within detection field is measured and the measured speed corresponding to th...

Citation Formats

Y. Yüksel, “Design and anaylsis of transfer aligment algorithms,” M.S. - Master of Science, Middle East Technical University, 2005.