This paper presents an evaluation of the MIMO performance of three candidate antenna array designs, each embedded within a PDA footprint, using indoor wideband channel measurements at 5.2 GHz alongside channel simulations.A channel model which read more employs the plane-wave approximation was used to combine the embedded antenna radiation patterns
Localization using relative ranging from radio frequency (RF) wireless beacons installed in an indoor infrastructure is becoming the hallmark of indoor localization systems for asset tracking.However, the coverage of these beacons is not always complete.Moreover, installing the beacons in underutilized spaces is not cost-effective.Deploying portabl
ABSTRACT The objective of the study was to evaluate the competitive ability of summer crisp and butterhead lettuce types in coexistence with populations of ryegrass.The experimental design was completely randomized in a factorial 2 x 7 scheme, with four replications.On the A factor the lettuce types (summer crisp and butterhead) were allocated and,
In ship design, the matching of engine, propeller, and hull is an analytical process to establish the optimal operating mode so that the engine works safely with full power and the lowest fuel consumption, and a ship reaches desired speed.In theory, the operating process of the engine, hull, and propeller is usually expressed by their characteristi
A deep reinforcement learning (DRL)-based motion planning method is proposed to improve long planning elapse and lengthy path of the traditional planning algorithms for robotic manipulator movement in obstacle avoidance.Firstly, based on the mathematical model of the manipulator and the motion environment, the DOBOT robot and the operating environm