Imaging and target detection with a heterodyne-reception optical radar

J. H. Shapiro; B. A. Capron; R. C. Harney

doi:10.1364/AO.20.003292

Applied Optics
Vol. 20,
Issue 19,
pp. 3292-3313
(1981)
•https://doi.org/10.1364/AO.20.003292

Imaging and target detection with a heterodyne-reception optical radar

J. H. Shapiro, B. A. Capron, and R. C. Harney

Not Accessible

Your library or personal account may give you access

Get PDF
Email
Share
Get Citation
Copy Citation Text
J. H. Shapiro, B. A. Capron, and R. C. Harney, "Imaging and target detection with a heterodyne-reception optical radar," Appl. Opt. 20, 3292-3313 (1981)

Export Citation
- BibTex
- Endnote (RIS)
- HTML
- Plain Text
Citation alert
Save article

Abstract

A mathematical system model for a compact heterodyne-reception infrared radar is developed. This model incorporates the statistical effects of propagation through atmospheric turbulence, target speckle and glint, and heterodyne-reception shot noise. It is used to find the image signal-to-noise ratio of a matched-filter envelope–detector receiver and the target detection probability of the optimum likelihood ratio processor. For realistic parameter values it is shown that turbulence-induced beam spreading and coherence loss may be neglected. Target speckle and atmospheric scintillation, however, present serious limitations on single-frame imaging and target-detection performance. Experimental turbulence strength measurements are reviewed, and selected results are used in sample performance calculations for a realistic infrared radar.

Full Article | PDF Article

More Like This

Turbulence effects on coherent laser radar target statistics

Jeffrey H. Shapiro and Sun T. Lau
Appl. Opt. 21(13) 2395-2398 (1982)

Heterodyne laser radar-SNR from a diffuse target containing multiple glints

J. Y. Wang
Appl. Opt. 21(3) 464-476 (1982)

Imaging Q-switched CO₂ laser radar with heterodyne detection: design and evaluation

Henrik Ahlberg, Stefan Lundqvist, Dietmar Letalick, Ingmar Renhorn, and Ove Steinvall
Appl. Opt. 25(17) 2891-2898 (1986)

Previous Article Next Article

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (27)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (121)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

		LOG $C_{n}^{2}$ STATISTICS (TYPE I)		LOG $C_{n}^{2}$ STATISTICS (All Weather)

		MEAN	STD. DEV.	MEAN	STD. DEV.

FEB	NIGHT	−14.13	0.58	−14.12	0.68
	DAY	−12.76	0.41	−13.63	0.76
MAR	NIGHT	−14.33	0.60	−14.05	0.75
	DAY	−12.70	0.52	−13.12	0.82
APR	NIGHT	−13.67	0.43	−13.64	0.51
	DAY	−12.79	0.62	−12.82	0.63
MAY	NIGHT	−13.49	0.54	−13.54	0.57
	DAY	−12.56	0.37	−12.85	0.63

Average power (P_av)	1 W
Pulse repetition frequency (PRF)	30 kHz
Transmitter/receiver diameter (d)	10 cm
Photon energy (hν₀)	1.87 × 10⁻²⁰ J
Optical efficiency (ɛ)	0.1
Quantum efficiency (η)	0.5
Average target reflectivity (ρ)	0.1

		LOG $C_{n}^{2}$ STATISTICS (TYPE I)		LOG $C_{n}^{2}$ STATISTICS (All Weather)

		MEAN	STD. DEV.	MEAN	STD. DEV.

FEB	NIGHT	−14.13	0.58	−14.12	0.68
	DAY	−12.76	0.41	−13.63	0.76
MAR	NIGHT	−14.33	0.60	−14.05	0.75
	DAY	−12.70	0.52	−13.12	0.82
APR	NIGHT	−13.67	0.43	−13.64	0.51
	DAY	−12.79	0.62	−12.82	0.63
MAY	NIGHT	−13.49	0.54	−13.54	0.57
	DAY	−12.56	0.37	−12.85	0.63

Average power (P_av)	1 W
Pulse repetition frequency (PRF)	30 kHz
Transmitter/receiver diameter (d)	10 cm
Photon energy (hν₀)	1.87 × 10⁻²⁰ J
Optical efficiency (ɛ)	0.1
Quantum efficiency (η)	0.5
Average target reflectivity (ρ)	0.1

Abstract

References

Cited By

Figures (27)

Tables (2)

Equations (121)

Metrics

Applied Optics

Login or Create Account