As shown in Figure 8, as the sampling rate increases, the TSPR algorithm achieves higher ASNR for phase recovered than the SIPR algorithm under three different coded apertures.
The ASNR and probability of successful recovery versus sampling rate for different algorithms are presented in Figures 10 and 11, respectively.
[E.sub.s] Transmitted power 1 ASNR
Average signal noise ratio 8 dB [tau] Temporal correlation 0.1s [M.sub.t] Pulse interval 1 ms [P.sub.fa] False alarm probability 0.05 [P.sub.d] Detection probability 0.95 PAPR Peak to average power ratio 3 dB [f.sub.s] The sampling frequency 10 GHz [f.sub.c] Center frequency of UWB 3 GHz
Comparing with ASNR
and precision from Figures 2(e), 2(f), and 2(g) are shown in Table 1.
To operate rapidly and effectively in an AOR requires a strong commitment to train and exercise together, otherwise the ASNR
objective stated above remains a pipe dream.
The combined task forces of the NASS, ASSR and ASNR
is a primary driver of this movement towards standardization of lumbar stenosis nomenclature, and they continue to advocate a simple, reproducible, easily understood scheme for the evaluation of spinal stenosis.
For example, publication rates for the 1993 American Society of Neuroradiology (ASNR
) conference, the 1995 Radiological Society of North America (RSNA) conference, and the 2001 European Society of Gastrointestinal and Abdominal Radiology (ESGAR) conference were 37%, 33% and 40%, respectively (12-15).
I had the privilege of attending, and delivering an oral presentation (Mild congenital external and middle ear malformations: Identifying the subtle findings) at, the 50th meeting of the American Society of Neuroradiology (ASNR
) in New York this year.
One of my favorite things about the RSNA, ASNR
, ARRS, and every other fill-in-the-blank meeting is walking through the hallways and catching sight of the people with dazzling ribbon counts.
I heard a presentation at ASNR
this year on the topic of phone interruptions.
Portions of this material were presented as a Scientific Exhibit at the American Society of Neuroradiology (ASNR
) Annual Meeting, June 2007, Chicago, IL.