Response to Frequency Shifted Artificial Echoes in the Bat Rhinolophus ferrumequinum [PDF]
In 5 roosting bats the resting frequency, that is the mean frequency of the cf-portion of consecutive sounds, is kept constant with a standard deviation which varies between 30 120 Hz in different bats and at different days. In 15 bats the emitted sounds
Beuter, Karl +2 more
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Spectral and temporal gating mechanisms enhance the clutter rejection in the echolocating bat, Rhinolophus rouxi [PDF]
Doppler shift compensation behaviour in horseshoe bats, Rhinolophus rouxi, was used to test the interference of pure tones and narrow band noise with compensation performance.
Neumann, Ingrid, Schuller, Gerd
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Efficient enhancements in spectral domain method to speed up open planar circuit analysis [PDF]
The spectral domain method is a very fast and powerful technique to analyse planar microwave circuits. Available techniques for simulating the excitation of open planar microwave circuits are not very effective at relatively low frequencies.
Balik, HH, Railton, CJ
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A nonlinearity-compensation-free optical frequency domain reflectometry (OFDR) scheme is proposed and experimentally demonstrated based on the electrically-controlled optical frequency sweep.
Fan Yang +4 more
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A Sinusoidal Current Driver With an Extended Frequency Range and Multifrequency Operation for Bioimpedance Applications [PDF]
This paper describes an alternative sinusoidal current driver suitable for bioimpedance applications where high frequency operation is required. The circuit is based on a transconductor and provides current outputs with low phase error for frequencies ...
Demosthenous, A +2 more
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Phase-coherent lightwave communications with frequency combs [PDF]
Fiber-optical networks are a crucial telecommunication infrastructure in society. Wavelength division multiplexing allows for transmitting parallel data streams over the fiber bandwidth, and coherent detection enables the use of sophisticated modulation ...
Andrekson, Peter A. +7 more
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Frequency-Domain Q-Compensated Reverse Time Migration Using a Stabilization Scheme
Seismic attenuation occurs during seismic wave propagation in a viscous medium, which will result in a poor image of subsurface structures. The attenuation compensation by directly amplifying the extrapolated wavefields may suffer from numerical ...
Xiong Ma +4 more
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Universal fractional-order design of linear phase lead compensation multirate repetitive control for PWM inverters [PDF]
Repetitive control (RC) with linear phase lead compensation provides a simple but very effective control solution for any periodic signal with a known period.
Liu, Zhichao, Zhang, Bin, Zhou, Keliang
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Single Miller frequency compensation: Three stage CMOS
A simple and efficient frequency compensation network is exploited for a three-stage amplifier. Single Miller capacitor at the output of a differential stage forms compensation network.
Ilghar Rezaei +3 more
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Hearing Characteristics and Doppler Shift Compensation in South Indian CF-FM Bats [PDF]
1. Echolocation pulses, Doppler shift compensation behaviour under laboratory conditions and frequency response characteristics of hearing were recorded inRhinolophus rouxi, Hipposideros speoris andHipposideros bicolor. 2.
A. Brosset +13 more
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