A low-power on-off-keying impulse-radio (IR) ultra-wideband (UWB) pulse generator (PG) intended for wireless-powered IR-UWB radio applications is presented. The proposed PG has high flexibility, the center frequency, output power and pulse-width (PW) are controllable depending on channel conditions and data rates. Qualitative frequency-domain and transient analyses are presented. A new figure-o...

In this paper we present a low power temporaldifference image sensor with wireless communication capability designed specifically for imaging sensor networks. The eventbased image sensor features a 64×64 pixel array and can also report standard analog intensity images. An ultra-wideband (UWB) radio channel allows to transmit digital temporal difference images wirelessly to a receiver with high ...

Various wideband antennas have been interesting subjects in antenna designs and have found important applications in military and civilian systems. For examples, the super-wideband (SWB) antenna is a key component of electronic counterwork equipment in the information warfare; while the ultra-wideband (UWB) antenna is widely used in impulse radar and communication systems. With the development ...

SUMMARY This study aims how to contain the environment reflection in a dynamic on-body ultra wideband (UWB) channel model. Based on a measurement approach, it is demonstrated that a complete body area channel model can be regarded as a combination of the on-body propagation characteristic and additional components from the environment. Based on such a channel model, the effect of environment re...

<span lang="EN-US">Developing an indoor positioning system became essential when global signals could not work well in environments. Mobile can be accomplished via many radio frequency technology such as Bluetooth low energy (BLE), wireless fidelity (Wi-Fi), ultra-wideband (UWB), and so on. With the pressing need for systems, we, this work, present a deployment scheme smartphone using iBe...

Abstract This paper presents a composite chaotic binary sequence that can be used for ultra-wideband(UWB) fuze pulse position modulation, which has good randomness under byte-constrained conditions. The feasibility of this UWB modulation is verified by hardware implementation. application with will increase the difficulty recognition jammer and enhance radio resistance to active interference.

Ultra-Wide Band (UWB) was presented as a promising radio technology. Because of their large bandwidth, UWB networks are supposed able to deliver high data rates at short ranges. But after analyzing measurements many works observed saturation of the number of channel Degrees of Freedom (DoF) versus bandwidth. This motivates the work presented in this paper where we focus on sub space behavior to...

Ultra wideband radio (UWB) is a new high-speed wireless technology that uses subnanosecond pulses to transmit information. Implementing an all-digital UWB receiver has numerous benefits ranging from low cost and ease of design to flexibility. Digitizing an RF signal near the antenna, however, introduces its own set of challenges and has traditionally been considered infeasible. A high-speed, hi...