Beam position monitors are the primary diagnostic in the Proton Storage Ring (PSR) at Los Alamos National Laboratory (LANL). Injecting into a circular accelerator for one turn can be approximated transversely as single-­‐particle injection with initial betatron amplitude and angle, x0 and x0’ respectively, also known as the injection offset. The turn-­‐by-­‐turn beam position data of the single...

This work presents a novel carrier frequency offset (CFO) estimation algorithm, based on pseudo-CFO (P-CFO), to estimate the CFO value under the conditions of I/Q mismatch for direct conversion structures with 2-dB gain error and 20-deg. phase error in frequency selective fading channels. To circumvent CFO with I/Q mismatch, the proposed P-CFO algorithm rotates three training symbols by adding ...

This paper presents the performance investigation of multi-phase voltage source inverter (VSI) with simple PWM switching techniques namely the harmonic injection and offset injection method. The technique discussed in this paper is easy to implement and avoid complicated controlling algorithm adapted in SVPWM technique. A generalized algorithm suitable for odd number of phases is developed in M...

We introduce differential-mode hot electron injection for adapting and storing analog nonvolatile signed state variables. This approach is compatible with modern digital CMOS technologies and is readily extended to novel circuit applications. We highlight advantages of the technique by applying it to the design of an adaptive floating gate comparator (AFGC). This is the first use of this techni...

Vdd Vdd Vdd A floating-gate pseudo-differential transconductor is presented, in which the differential input signal is allowed to have a dc offset. Normally such an offset would render a normal CMOS differential pair useless. The circuit "VX v y " inherently removes any dc offset from the floating gates lout(-) lO"I(+) by feedback mechanisms involving Fowler-Nordheim electron tunneling and hot-...

An injection-locked clock recovery circuit (CRC) with quadrature outputs based on multiplexed oscillator is presented. The CRC can operate at a half-rate speed to provide an adequate locking range with reasonable jitter and power consumption because both clock edges sample the data waveforms. Implemented by 0.18-μm CMOS technique, experimental results demonstrate that it can achieve the phase n...

Multi-offset, single-hole, borehole-radar reflection surveys were conducted at the U.S. Geological Survey Fractured Rock Research Site at Mirror Lake, in Grafton County, New Hampshire. The study was conducted to evaluate the benefits of applying multi-offset seismic processing techniques to borehole-radar reflection surveys in fractured rock. The multi-offset reflection surveys were conducted i...

At low frequencies, offset, 1/f noise and drift are the dominant error sources of operational amplifiers. This is especially true in CMOS technology. This chapter reviews precision techniques that can be used to achieve low 1/f noise and low offset in operational amplifiers. There are three types of CMOS offset cancellation techniques: trimming, chopping, and auto-zeroing. Trimming is usually p...