Comment on "Partial differentials of Marcum's Q function"

1968 ◽  
Vol 56 (12) ◽  
pp. 2195-2195 ◽  
Author(s):  
R. Esposito
Keyword(s):  
Q Function

scholarly journals Tight bounds for the first order Marcum Q-function

2010 ◽  
Vol 12 (4) ◽  
pp. 293-301 ◽  
Author(s):  
Jiangping Wang ◽  
Dapeng Wu
Keyword(s):  
First Order ◽  
Q Function

Cauchy-Schwarz bound on the generalized Marcum Q-function with applications

2001 ◽  
Vol 1 (2) ◽  
pp. 243-253 ◽  
Author(s):  
A. Annamalai ◽  
C. Tellambura
Keyword(s):  
Q Function

Onq-difference equations andZ n decompositions of exp q function

2001 ◽  
Vol 11 (1) ◽  
pp. 39-61 ◽  
Author(s):  
A. K. Kwaśniewski ◽  
B. K. Kwaśniewski
Keyword(s):  
Difference Equations ◽  
Q Function

Regional Lg attenuation for the continental United States

1997 ◽  
Vol 87 (3) ◽  
pp. 606-619 ◽  
Author(s):  
Harley M. Benz ◽  
Arthur Frankel ◽  
David M. Boore
Keyword(s):  
United States ◽  
Frequency Band ◽  
Southern California ◽  
Basin And Range ◽  
Northeastern United States ◽  
Basin And Range Province ◽  
Frequency Dependent ◽  
Low Frequencies ◽  
Central United States ◽  
Q Function

Abstract Measurements of the Fourier amplitude spectra of Lg phases recorded at high frequency (0.5 to 14.0 Hz) by broadband seismic stations are used to determine regional attenuation relationships for southern California, the Basin and Range Province, the central United States, and the northeastern United States and southeastern Canada. Fourier spectral amplitudes were measured every quarter octave from Lg phases windowed between 3.0 and 3.7 km sec−1 and recorded in the distance range of 150 to 1000 km. Attenuation at each frequency is determined by assuming a geometrical spreading exponent of 0.5 and inverting for Q and source and receiver terms. Both southern California and the Basin and Range Province are well described by low Lg Q and frequency-dependent attenuation. Lg spectral amplitudes in southern California are fit at low frequencies (0.625 to 0.875 Hz) by a constant Lg Q of 224 and by a frequency-dependent Lg Q function Q = 187−7+7f0.55(±0.03) in the frequency band 1.0 to 7.0 Hz. The Basin and Range Province is characterized by a constant Lg Q of 192 for frequencies of 0.5 to 0.875 Hz and by the frequency-dependent Lg Q function Q = 235−11+11f0.56(±0.04) in the frequency band 1.0 to 5.0 Hz. A change in frequency dependence above 5.0 Hz is possible due to contamination of the Lg window by Pn and Sn phases. Lg spectral amplitudes in the central United States are fit by a mean frequency-independent Lg Q of 1291 for frequencies of 1.5 to 7.0 Hz, while a frequency-dependent Lg Q of Q = 1052−83+91(f/1.5)0.22(±0.06) fits the Lg spectral amplitudes for the northeastern United States and southeastern Canada over the passband 1.5 to 14.0 Hz. Attenuation measurements for these areas were restricted to frequencies >1.5 Hz due to larger microseismic noise levels at the lower frequencies.

Thermopower and 1/f Noise Measurements in Amorphous Silicon-Carbon Alloys

1995 ◽  
Vol 377 ◽  
Author(s):  
H. M. Dyalsingh ◽  
G. M. Khera ◽  
J. Kakalios
Keyword(s):  
Amorphous Silicon ◽  
Power Spectra ◽  
Carbon Films ◽  
Noise Power ◽  
Mobility Edge ◽  
Silicon Carbon ◽  
Noise Measurements ◽  
Noise Statistics ◽  
Hydrogenated Amorphous ◽  
Q Function

ABSTRACTThermopower, conductivity and 1/f noise measurements have been performed on a series of n-type doped hydrogenated amorphous silicon carbon films that are prepared with varying gas phase concentrations of CH4. The increased disorder at the mobility edge associated with alloying is characterized by the Q-function, which is obtained by combining thermopower and conductivity measurements, and is also reflected in the noise power spectra and noise statistics.

Approximation for the Two-Dimensional Gaussian Q-Function and Its Applications

ETRI Journal ◽  
2010 ◽  
Vol 32 (1) ◽  
pp. 145-147 ◽  
Author(s):  
Jinah Park ◽  
Seungkeun Park
Keyword(s):  
Two Dimensional ◽  
Q Function
Sign in / Sign up

Export Citation Format

Share Document