1. Full name: Nguyen Van Thang                                   2. Sex: Male     

3. Date of birth: March, 5th, 1979                                   4. Place of  birth: Binh Luc, Ha Nam

5. Admission decision number: 1142/QĐ-CTSV.  Dated: December, 28th, 2011   

6. Changes in academic process:

- Addition of superviser under the admission decision number 190/QĐ-ĐT, dated March, 27th, 2013.

- 2 year extension compared to the standard traning Course

7. Official thesis title: Design and build up a MEMS-based INS/GPS integrated system applied for the land vehicles.

8. Major: Electronic Engineering 9. Code: 62 52 02 03   

10. Supervisors:

Assoc. Prof. PhD Chu Duc Trinh.

Assoc. Prof. PhD Tran Duc Tan

11. Summary of the new findings of the thesis:

The thesis presents two main contributions which can improve the performance of the INS/GPS integrated system:

- Finding out a new algorithm called the Street Tracking Algorithm (STA). This algorithm and digital map are put into the low-cost INS/GPS hardware integrated system to test results. The experiment results demonstrate that the low-cost INS/GPS hardware integrated system uses STA and digital map can estimate position, velocity, and heading of the land vehicle especially when the GPS signal is lost. The STA works based on the position, time before GPS signal is lost, the velocity increment from the IMU, and a digital map. The position error of the system is controlled around 5 meters and the velocity error is controlled around 3.2 m/s when the GPS signal is lost in 200 seconds with a travel distance of 1870 meters. Besides that, the attitude (heading) of the land vehicle is also improved.

- A novel tuning fork gyroscope with a differential suspension structure between two driving frames are designed, simulated. The driving frame mechanical vibration is well matched when the electrical driving differential phase is less than or equal to 3.5° in structure 1; 2.5° in structure 2; 4° in structure 3. The differential gained parameters are, therefore, much improved when the common vibration modes between the two driving frames are ignored.

12. Practical applicability, if any:

- The STA-based INS/GPS integrated system can be applied of the land vehicles.

- The proposed TFG can be improved and fabricated to become a better one.

13. Further research directions, if any:

- To research and improve Street Tracking Alogirthm STA in order to INS/GPS system can be applied for any orbits and moving directions.

- To optimize the proposed structure of Tuning Fork Gyroscope. After that, implemetation of fabrication, measurment and comparation to simulating results with a view to achieving the best TFG.

- To build up an INS/GPS integrated system including of hardware and software that has the better accuracy compared to traditional one.

14. Thesis-related publications:

Nguyen Van Thang; Pham Manh Thang; Tran Duc-Tan (2012), “The Performance Improvement of a low-cost INS/GPS Integration System Using the Street Return Algorithm”, Vietnam Journal of Machanics, VAST, ISSN: 0866-7136, Vol. 34, No. 4, pp. 271-280.

Nguyen Van Thang; Chu Duc Trinh; Tran Duc-Tan (2012), “The performance improvement of a low-cost INS/GPS integration system using street return algorithm and compass sensor”, The 6th Vietnam Conference on Mechantronics (VCM 2012), Hanoi, Vietnam, pp. 280-287.

Nguyen Van Thang; Chu Duc Trinh; Tran Duc-Tan (2013), “Application of Street Tracking Algorithm in a feedback configuration for an integrated INS/GPS navigation system”, AETA 2013: Recent Advanced in Electrical Engineering and Related Sciences, Lecture Notes in Electrical Engineering, Vol. 282, pp. 279-288.