IGARSS, Honolulu, Hawai’i

Wednesday 28 July 2010

R. Keith Raney

Many Happy Returns:

Reflections Inspired

by

Kiyo Tomiyasu

Many Happy Returns:

Reflections Inspired

by

Kiyo Tomiyasu

1919 Pierce Arrow

Kiyo Tomiyasu, born in Las Vegas, Nevada, September 1919

California Institute of Technology,

Bachelor of Science, 1940Kiyo: “I was a scared rabbit…”

California Institute of Technology,

Bachelor of Science, 1940Kiyo: “I was a scared rabbit…”

Earthquake

seismometer ?

Columbia, MS Eng,

1941

Harvard University,

PhD, 1942-1948

Columbia, MS Eng,

1941

Harvard University,

PhD, 1942-1948

Columbia, MS Eng,

1941

Easter, 1946…

Married Eiko, 1947

Harvard University,

PhD, 1942-1948

Columbia, MS Eng,

1941

Easter, 1946…

Married Eiko, 1947Computer

Laboratory

30 m

Harvard University,

PhD, 1942-1948

Columbia, MS Eng,

1941

Easter, 1946…

Harvard’s Mark I computer (IBM ASCC), 1944

Howard H. Aiken (and Grace Hopper)

Effective clock speed: 3 Hz !!

Dr. Kiyo Tomiyasu

Recipient of Numerous Awards and Honors, including

� President MTT-S (1960-61)

� Japanese American Citizen’s League Silver Medallion (1962)

� IEEE Fellow (1962), Life Fellow (1985)

� Director, IEEE Board of Directors (1985 – 86)

� Honorary Life AdCom Member: MTT-S (1973), GRSS (1999)

� General Electric Charles Proteus Steinmetz Award (1977)

� MTT-S Microwave Career Award, (1980)

� IEEE Centennial Medal (1984)

� Annual Prize, Telecommunications Association of Japan (1986)

� Outstanding Service Award, GRSS (1986)

� Distinguished Service Award, MTT-S (1987)

� California Institute of Technology Distinguished Alumni Award (2002)

� IEEE Heritage Circle, Thomas Alva Edison Medal (2010)

Dr. Kiyo Tomiyasu

Initiator of Awards and Philanthropy, including

� Annual Scholarships (with Eiko) at Cal Tech (1977 - )

� IEEE Foundation Fund: Harold Sobol Student Grant (MTT-S)

� IEEE Foundation Fund: Mike Takagi Student Prize (GRSS)

� Cal Tech Kiyo and Eiko Tomiyasu Endowed Professorship

� IEEE Kiyo Tomiyasu Technical Field Award (2002 - )

Recipient of Numerous Awards and Honors, including

� President MTT-S (1960-61)

� Japanese American Citizen’s League Silver Medallion (1962)

� IEEE Fellow (1962), Life Fellow (1985)

� Director, IEEE Board of Directors (1985 – 86)

� Honorary Life AdCom Member: MTT-S (1973), GRSS (1999)

� General Electric Charles Proteus Steinmetz Award (1977)

� MTT-S Microwave Career Award, (1980)

� IEEE Centennial Medal (1984)

� Annual Prize, Telecommunications Association of Japan (1986)

� Outstanding Service Award, GRSS (1986)

� Distinguished Service Award, MTT-S (1987)

� California Institute of Technology Distinguished Alumni Award (2002)

� IEEE Heritage Circle, Thomas Alva Edison Medal (2010)

Dr. Kiyo Tomiyasu

Initiator of Awards and Philanthropy, including

� Annual Scholarships (with Eiko) at Cal Tech (1977 - )

� IEEE Foundation Fund: Harold Sobol Student Grant (MTT-S)

� IEEE Foundation Fund: Mike Takagi Student Prize (GRSS)

� Cal Tech Kiyo and Eiko Tomiyasu Endowed Professorship

� IEEE Kiyo Tomiyasu Technical Field Award (2002 - )

Recipient of Numerous Awards and Honors, including

� President MTT-S (1960-61)

� Japanese American Citizen’s League Silver Medallion (1962)

� IEEE Fellow (1962), Life Fellow (1985)

� Director, IEEE Board of Directors (1985 – 86)

� Honorary Life AdCom Member: MTT-S (1973), GRSS (1999)

� General Electric Charles Proteus Steinmetz Award (1977)

� MTT-S Microwave Career Award, (1980)

� IEEE Centennial Medal (1984)

� Annual Prize, Telecommunications Association of Japan (1986)

� Outstanding Service Award, GRSS (1986)

� Distinguished Service Award, MTT-S (1987)

� California Institute of Technology Distinguished Alumni Award (2002)

� IEEE Heritage Circle, Thomas Alva Edison Medal (2010)

While still quite young, Kiyo founded

and was the leader of the GE Laser

Group (1961-1967)

Laser Papers Published by Year

1

10

100

1000

10000

1957 1958 1959 1960 1961 1962 1963 1964 1965 1966

Year

Nu

mb

er

of

pap

ers

Note

logarithmic

scale !!!

Townes,

Schawlow;

Gould

Laser Papers Published by Year

1

10

100

1000

10000

1957 1958 1959 1960 1961 1962 1963 1964 1965 1966

Year

Nu

mb

er

of

pap

ers

Ruby laser

(Maiman)

Kiyo’s

inspiration

Laser Papers Published by Year

1

10

100

1000

10000

1957 1958 1959 1960 1961 1962 1963 1964 1965 1966

Year

Nu

mb

er

of

pap

ers Kiyo: 5 reference

collections, IEEE

J. of Quantum

Electronics

Kiyo’s laser leadership at GE

1967

Plenum Press,

1968

3990 references,

organized into 27

subject groups,

annotated

Plenum Press,

1968

3990 references,

organized into 27

subject groups,

annotated

A profitable

enterprise ?

Banyan tree in Ft. Myers, Florida

(Planted by T. A. Edison)

K Tomiyasu,

“Germinating Tropical

Seeds,”

Fruit Gardener, 1978

(4), p. 7

In Cambodia…

Banyan Bonsai

Kiyo’s little-known hobby

for nearly 30 years

For most of us it is a struggle to generate good ideas….

Kiyo: 20 U

S Pate

nts (1

956-1972);

95 refe

reed p

apers

Awarded in 1977

Awarded in 1977

Charles P Steinmetz

1865 – 1923

Consulting engineer

to GE

“Father of AC”

X marks the spot

Kiyo Tomiyasu, Guest Editor

Kiyo Tomiyasu, Guest Editor

Kiyo Tomiyasu, Guest Editor

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, VOL. GE-19, NO. 2, APRIL 1981

Ambiguity Space Trade-offs

Doppler BW (Hz) BDop

Range window (sec) TR

Antenna beamwidth (rad) β

Radar range (m) R

Footprint velocity (m/s) V

Antenna aperture (m) D

Azimuth resolution (m) rAz

Synthetic aperture time (s) TA

Avoid ambiguities rule: BDop TR < 1 (underspread)

StripSAR

Ambiguity Space Trade-offs

Doppler BW (Hz) BDop

Range window (sec) TR

Antenna beamwidth (rad) β

Radar range (m) R

Footprint velocity (m/s) V

Antenna aperture (m) D

Azimuth resolution (m) rAz

Synthetic aperture time (s) TA

Avoid ambiguities rule: BDop TR < 1 (underspread)

Time-Bandwidth product rule*:

r Az =β R

T A BDop

ffffffffffffffffff

ScanSAR**StripSAR

Harger (1970); Bucknam (1975*); Claassen (1975), Moore (1976**, 1981),

and Lin (1979); Tomiyasu (1979, 1980, 1981); Luscombe (1988)

Harger (1970); Bucknam (1975*); Claassen (1975), Moore (1976**, 1981),

and Lin (1979); Tomiyasu (1979, 1980, 1981); Luscombe (1988)

Ambiguity Space Trade-offs

Doppler BW (Hz) BDop

Range window (sec) TR

Antenna beamwidth (rad) β

Radar range (m) R

Footprint velocity (m/s) V

Antenna aperture (m) D

Azimuth resolution (m) rAz

Synthetic aperture time (s) TA

Avoid ambiguities rule: BDop TR < 1 (underspread)

Time-Bandwidth product rule*:

Now substitute for BDop to get a new fundamental

azimuth resolution vs coverage rule:

T R

T A

fffffffβ R

r Az

fffffff

< 1

T 0A =β R

V

ffffffff

r 0Azt

D

2

fffff

n T 0A

r 0Az

n

ffffffff

T 0A

n

ffffffff

AND n T R

n r0Az

T A

r Az

r Az =β R

T A BDop

ffffffffffffffffff

ScanSAR**SpotSARStripSAR

Harger (1970); Bucknam (1975*); Claassen (1975), Moore (1976**, 1981),

and Lin (1979); Tomiyasu (1979, 1980, 1981); Luscombe (1988)

Harger (1970); Bucknam (1975*); Claassen (1975), Moore (1976**, 1981),

and Lin (1979); Tomiyasu (1979, 1980, 1981); Luscombe (1988)

RADARSAT-1 Antenna

�Slotted waveguide antenna

�15-m width (azimuth)

�1.5-m height (elevation)

�32 horizontal WGs

�Each WG center-fed

�Phase and amplitude control

�Selectable elevation (range)

directivity and beamshape

ElevationAzimuth

X

…and you have always

maintained perspective, while

being energetic, original,

gentle, and generous

Thank You !