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This paper reports two new milestones in the development of miniaturized Coriolis Vibratory Gyroscopes (CVG) with beyond navigation grade performance. Firstly, a small size and low parts count milli-Hemispherical Resonator Gyroscope (mHRG) based on a drastically simplified production unit is demonstrated with measured 0.00025 deg/rt-hr ARW and 0.005 deg/hr bias. Secondly, real time self-calibration...
The Hemispherical Resonator Gyro (HRG) has proven itself to be an ultra-reliable technology for space application with over 30 million operation hours and 100% mission success. Northrop Grumman Advanced Navigation Systems is developing a small size and lightweight terrestrial inertial sensor assembly (ISA) based on the HRG approach. This ISA will be the core of future inertial measurement unit (IMU)...
A novel Switched Resonant Clocking (SRC) scheme is proposed to solve two basic problems of the conventional resonant clocking, that is, power increase and clock waveform inability at the lower clock frequency region. The power increase prohibits widely-used dynamic frequency scaling (DFS) and the waveform instability hinders low-speed function tests. A test chip in 0.18 mum CMOS is manufactured and...
An asynchronous threshold detector for DC-960 MHz band impulse ultra-wideband (UWB) receiver is proposed in this paper. It features a DC power-free pulse discriminator. The proposed architecture in 90 nm CMOS achieves the lowest power consumption of 0.19 mW and energy consumption of 1.9 pJ/bit at 100 Mbps in the UWB receiver.
A low power impulse ultra-wideband (UWB) transceiver for DC-960 MHz band is proposed in this paper. It features a digital pulse-shaping transmitter, a DC power-free pulse discriminator and an error-recovery phase-frequency detector. The developed transceiver in 90 nm CMOS achieves the lowest energy consumption of 2.2 pJ/bit (TX) and 1.9 pJ/bit (RX) at 100 Mbps.
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