Cerit, Kübra
In this thesis, optical system design, integration and testing of a compact LIDAR system with 270 degree field-of-view that based on time of flight principle is developed by Rekrom Optoelectronics. This system can identify objects and measure distances up to 100 m away. LIDAR has become a much needed and used technology in various fields. The most important of these areas are robotic systems, autonomous vehicles and unmanned aerial, land and sea platforms navigation and environmental awareness. The main reason that the LIDAR has become preferred technology is that it is much faster in the aspect of environmental awareness whereas being able to easily provide the distance information of the objects. LIDAR can provide high-resolution vision by generating millions of data points in real-time. This creates a precise map of the ever-changing surroundings that allow the objects to be recognized and categorized. And thanks to the advent and adoption of solid-state technology, the cost of these high-resolution sensors has also been considerably reduced, making them a perfect fit for a wide range of technologies.


Analysis of vision aided inertial navigation systems
Yuksel, Yigiter; Kaygisiz, H. Burak (2006-04-19)
We propose in this paper a method to integrate inertial navigation systems with electro optic imaging devices. Our method is based on updating the inertial navigation system in a Kalman filter structure using line of sight measurements obtained from a camera. The proposed method is analyzed based on a UAV scenario generated by our trajectory simulator and the results are provided here. The results show that even a single vision aid can improve the performance of inertial navigation system.
Investigation of effect of design and operating parameters on acoustophoretic particle separation via 3D device-level simulations
Sahin, Mehmet Akif; ÇETİN, BARBAROS; Özer, Mehmet Bülent (Springer Science and Business Media LLC, 2019-12-16)
In the present study, a 3D device-level numerical model is implemented via finite element method to assess the effects of design and operating parameters on the separation performance of a microscale acoustofluidic device. Elastodynamic equations together with electromechanical coupling at the piezoelectric actuators for the stress field within the solid parts, Helmholtz equation for the acoustic field within fluid, and Navier-Stokes equations for the fluid flow are coupled for the simulations. Once the zer...
Multi-Point Single-Antenna Sensing Enabled by Wireless Nested Split-Ring Resonator Sensors
Ozbey, Burak; ERTÜRK, VAKUR BEHÇET; Kurç, Özgür; ALTINTAŞ, AYHAN; DEMİR, Hilmi Volkan (2016-11-01)
In this paper, simultaneous multi-point wireless sensing is proposed and demonstrated via multiple sensors in nested split-ring resonator (NSRR) geometry coupled to a single illuminator antenna. In this passive multi-point sensing system, each probe in the sensor array is assigned a non-overlapping spectral interval for frequency shift in response to local mechanical loading around a unique operating resonance frequency in the band of the antenna. Here, it is shown that the antenna is capable of capturing t...
Measurement correction of a set of analog sun sensors via neural network
Sozen, Semsettin Numan; Gokce, Murat; Yavuzyilmaz, Cagatay; Gulmammadov, Farid; Söken, Halil Ersin (2021-06-23)
A Neural Network (NN) based method to improve the accuracy of a set of analog Sun sensors is presented. Analog Sun Sensors are commonly used on satellites due to their reduced cost, small size and low power consumption. However, especially in Earth imaging satellites, they are prone to the Earth albedo effects. Magnitude and direction of albedo change depending on the reflection characteristics of the Earth's surface, position and attitude of the satellite and position of the Sun. The albedo may deteriorate...
Robot end-effector based sensor integration for tracking moving parts
Konukseven, Erhan İlhan (2000-08-31)
This paper presents a cost-efficient end-effector based infrared proximity sensor integration system and the implementation of fuzzy-logic control algorithm.
Citation Formats
K. Cerit, “OPTICAL SYSTEM DESIGN, INTEGRATION AND TESTING OF A 2D SCANNING LIDAR,” M.S. - Master of Science, Middle East Technical University, 2022.