A CMOS 8-bit binary type current steering Digital to Analog Converter DAC with dynamic random return to zero technique to improve dynamic performance is presented in this paper. Current steering DAC has advantage of constant output impedance and high conversion rate. To demonstrate the proposed technique, 8 bit CMOS DAC is designed and layout is prepared in 90 nm technology. Computation of Inte...

Modern telecommunication applications, such as the digital subscriber line (DSL) technologies require high-speed and high-resolution data converters. For the digital-to-analog converters (DACs) the requirements are around 12-14 bits of resolution and several MHz of signal bandwidth. The current-steering architecture is most often used, because it is suitable for high-speed operation. However, i...

In this paper, a novel technique for electronic beam steering in time modulated linear array (TMLA) is proposed. The beam steering technique is realized at the first sideband by controlling the switch-on time sequences of each element in the TMLA without using phase shifters. The differential evolution (DE) algorithm is employed to improve the gain and suppress the sidelobe levels (SLLs) at bot...

We present a method for trajectory generation for all-wheel steering mobile robots which can account for rough terrain and predictable vehicle dynamics and apply it to the problem of generating optimal motion splines. There has been little work in trajectory generation for vehicles with all-wheel steering capability compared to the Ackermann, differential-drive, or omnidirectional mobility syst...

Many vehicle control systems were designed and implemented in the last years to enhance performances and stability acting on front and/or rear steering actuators [1,2,3] and/or individual wheel braking [8]; the development of electroactuated differentials allows to transfer torque between wheels from the faster to the slower one in semiactive differentials [11,12,13,14] and in both directions i...

This paper proposes the design of a micro-controller based fuzzy logic controller for a remote controlled mine detecting robot. In the real time applications the detection and location of bomb is highly essential in the field of defense applications. Considering the value of human life the robot is allowed in the field to detect the bomb. The mine detecting robot is designed with IR sensors, me...