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Qaagi - Book of Why

Causes

Effects

the Doppler effect and oscillator drift(passive) can be caused byThe frequency offset

the Doppler effect and the oscillator instability(passive) caused bythe frequency offset

the mismatch between local oscillators and Doppler effect(passive) caused byFrequency offset

Doppler Effect of up to 250 km / h movement(passive) caused bythe frequency offset

the relative motion of the satellite and receiver ( the Doppler effect(passive) caused bythe frequency offset

the Doppler shift or hardware imperfections(passive) are caused byFrequency offsets

clock drift and Doppler shift(passive) caused byfrequency offsets

the Doppler shift and the oscillators instability(passive) caused byThe frequency offset

the Doppler effect and LO offsets in mobile wireless communication systems(passive) caused bya frequency offset

Doppler shift in the channel and local oscillator free running inaccuracy in the pager receiver(passive) caused bythe frequency offset

Doppler effect caused by the atmosphere distortions and imperfections in the input stages of the receiving stations(passive) caused bythe frequency offset

different Doppler frequency shifts(passive) caused byfrequency offsets

the Doppler shift of the moving access terminal 116(passive) caused bythe frequency offset

the Doppler effect , where zero frequency offset represents the presence of a signal at the frequency transmitted by terrestrial station 104(passive) caused bythe frequency offset

many sources , Doppler shift or local oscillator error , for example(passive) may be caused byThe frequency offset

either Doppler shift by fast moving satellite and/or local oscillator frequency deviation(passive) caused bythe frequency offset

a mismatch between transmitter and receiver oscillators , Doppler shift , and channel impairments(passive) caused byto frequency offset

� centering error(passive) caused byfrequency offset

frequency difference between local oscillator of transmitter and receiver or due to Doppler shift(passive) caused bythe frequency offset

a mismatch between a voltage controlled oscillator ( VCO ) of transmitter 4 and a VCO of receiver 6 or may also be caused by the Doppler effect(passive) may be caused bya frequency offset

oscillator inaccuracies or Doppler shift results in ICI that degrade BER performance(passive) caused byThe frequency offset

the Doppler shift and the frequency error of the local oscillator ( not shown ) of the receiver 1(passive) caused bythe frequency offset

the change in the loading amount due to turning off the buffer amplifier 25A or part of the capacitor array 23 by similarly changing the counter threshold of the frame counter 24(passive) caused bythe frequency offset

the Doppler shift incurred on the mobile unit in mobile communications and on the satellite in satellite communications(passive) is also caused byFrequency offset

the change in the loading amount due to turning off the buffer amplifier 25A or part of the capacitor array 23 to lower the power consumption by changing the counter threshold of the frame counter 24(passive) caused bythe frequency offset

a free - running oscillator EP0670639A1 ( en(passive) caused byfrequency offsets

a free - running oscillator US7457356B2 ( en(passive) caused byfrequency offsets

a free - running oscillator EP1324619B1 ( en(passive) caused byfrequency offsets

a free - running oscillator US 7155174(passive) caused byfrequency offsets

to be present between the first frequency of the transmitted light pulse and a second frequency of the optical local oscillator light , where the frequency offset is at least 1 GHz less than a Brillouin frequency shift of the backscattered light(passive) is causedA frequency offset

as g , f0=10−2[Hz / symbol(passive) is setNormalized frequency offset

the change in the loading amount due to turning off the buffer amplifier 25A or part of the tuning capacitor array 23(passive) caused bythe frequency offset

various problems , such as , for example , the different oscillator frequencies at the transmitter and receiver , communication channel errors , Doppler shift , or other communication problems(passive) may be caused byThe frequency offset

the frequency difference of the CW light between the light sources of the transmission apparatus 1 and the reception apparatus 3 on the signal compensated in the adaptive equalizer 42(passive) caused bya frequency offset

a free - running oscillator US20040067741 * Oct 2 , 2002(passive) caused byfrequency offsets

the relative motion which occurs between the transmitter and the receiver ( Doppler shift ) which introduces Inter - carrier Interference ( loss of orthogonality between sub - carriers ) in the OFDM symbol and the use of ICI Self cancellation method(passive) caused byto frequency offset

a free - running oscillatorUS7209716 * Feb 26 , 2004Apr 24 , 2007Ntt(passive) caused byfrequency offsets

a transmission medium likelyto causea frequency offset

the change in the loading amount due to turning off the buffer amplifier 25A or part of the capacitor array 23 ( e.g. , setting both of the coarse - tune capacitor array 23A and the fine - tune capacitor array 23B to have a minimum capacitance value such as zero ) by changing the counter threshold of the frame counter 24(passive) caused bythe frequency offset

the reduced capacitance value of the capacitor array 23 according to the size of the time error(passive) caused bythe frequency offset

further signal distortioncausesfurther signal distortion

the steady phase shift(passive) caused bythe steady phase shift

part 600 estimates phase shift(passive) caused bypart 600 estimates phase shift

the intercarrier interference ( ICI(passive) caused bythe intercarrier interference ( ICI

a phase rotation in each subcarriercausesa phase rotation in each subcarrier

a phase rotation θ1(passive) caused bya phase rotation θ1

a constant phase rotation(passive) caused bya constant phase rotation

a phase rotation amount(passive) caused bya phase rotation amount

in an added phase errorresultsin an added phase error

the steady phase error(passive) caused bythe steady phase error

ICI ) components(passive) caused byICI ) components

the case of ICI(passive) caused bythe case of ICI

phase rotation in the input samplescausesphase rotation in the input samples

the phase rotation of the subcarriers over timecausesthe phase rotation of the subcarriers over time

a phase rotation in the constellation diagramcausesa phase rotation in the constellation diagram

phase rotation in the constellation planecausesphase rotation in the constellation plane

the accumulated phase rotation term(passive) caused bythe accumulated phase rotation term

the less phase error which is to be expected(passive) caused bythe less phase error which is to be expected

a phase rotation of the modulation at a rate is equal to the frequency offsetcausesa phase rotation of the modulation at a rate is equal to the frequency offset

an influence(passive) caused byan influence

a reduction of the amplitude of each detected subcarrier after the DFT ( e.g. , 210 in FIG . 2 ... introduces inter - carrier interference ( ICI ) , and gives a rotation progressive in time of the received constellation pointscausesa reduction of the amplitude of each detected subcarrier after the DFT ( e.g. , 210 in FIG . 2 ... introduces inter - carrier interference ( ICI ) , and gives a rotation progressive in time of the received constellation points

a frequency distortion(passive) caused bya frequency distortion

phase errors smaller thancausingphase errors smaller than

the phase - shifting effect(passive) caused bythe phase - shifting effect

lCI ( inter carrier interferencecauseslCI ( inter carrier interference

the resulting signal level and inter - chip interference under the presence of the clock offset(passive) caused bythe resulting signal level and inter - chip interference under the presence of the clock offset

the constellation rotation(passive) caused bythe constellation rotation

attenuation of each subcarrier as well as ICIcausesattenuation of each subcarrier as well as ICI

the received data to be displaced from the reference constellation point by the phase rotation φm , which is given in Equation 6 and is also shown in FIG . 5causesthe received data to be displaced from the reference constellation point by the phase rotation φm , which is given in Equation 6 and is also shown in FIG . 5

the phase rotations(passive) caused bythe phase rotations

the alias ( i.e. , Doppler shift(passive) caused bythe alias ( i.e. , Doppler shift

the second source of distortion(passive) caused bythe second source of distortion

a continuous phase change of the received signal in the time domaincausesa continuous phase change of the received signal in the time domain

a phase rotation of π/2 or more during a PLSC 64-symbol intervalcausinga phase rotation of π/2 or more during a PLSC 64-symbol interval

a simple phase rotation ... linearly increasing over all time samples ... but there is no cross - sample - interferencecausesa simple phase rotation ... linearly increasing over all time samples ... but there is no cross - sample - interference

Sun Shanlin Inter - Carriers Interference ( ICI(passive) caused bySun Shanlin Inter - Carriers Interference ( ICI

a simple and convenient technique to reduce ICI(passive) caused bya simple and convenient technique to reduce ICI

to zero for this calculationis setto zero for this calculation

the disruption of the orthogonality among the subcarriers resulting in mutual interference among the various subcarrierscausethe disruption of the orthogonality among the subcarriers resulting in mutual interference among the various subcarriers

to performance degradation , which is primarily caused by inter - carrier interferencecan leadto performance degradation , which is primarily caused by inter - carrier interference

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