Journals
Advanced Photonics
Photonics Insights
Advanced Photonics Nexus
Photonics Research
Advanced Imaging
View All Journals
Chinese Optics Letters
High Power Laser Science and Engineering
Articles
Optics
Physics
Geography
View All Subjects
Conferences
CIOP
HPLSE
AP
View All Events
News
About CLP
Search by keywords or author
Login
Registration
Login in
Registration
Search
Search
Articles
Journals
News
Advanced Search
Top Searches
metasurface
laser
polarization
nir
lithium niobate
optical coherence tomography
Journals >
Laser & Optoelectronics Progress >
Volume 60 >
Issue 7 >
Page 0706004 > Article
Laser & Optoelectronics Progress
Vol. 60, Issue 7, 0706004 (2023)
Estimation of Ricean Factor Based on Fitting
Zhongqing Fan
*
, Hong Jiang, and Zhining Wang
Author Affiliations
School of Information Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China
show less
DOI:
10.3788/LOP220553
Cite this Article
Set citation alerts
Zhongqing Fan, Hong Jiang, Zhining Wang. Estimation of Ricean Factor Based on Fitting[J]. Laser & Optoelectronics Progress, 2023, 60(7): 0706004
Copy Citation Text
EndNote(RIS)
BibTex
Plain Text
show less
Fig. 1.
Flow chart of each algorithm
Download full size
Fig. 2.
Comparison of estimated results of different estimators. (a) Bais; (b) estimated value
Download full size
Fig. 3.
Comparison of Bias and RMSE of different estimators. (a) Bias; (b) RMSE
Download full size
Fig. 4.
Relationship between sample size and estimation bias. (a) Algorithm
K
^
R
F
R
and algorithm
K
^
f
i
t
1
; (b) algorithm
K
^
n
b
and algorithm
K
^
f
i
t
2
Download full size
Fig. 5.
Relationship between signal to noise ratio (SNR) and estimation bias. (a) SNR is greater than or equal to 20 dB; (b) SNR is 20 dB
Download full size
Evaluation index
Formula(14)
Formula(15)
Formula(16)
Formula(17)
RMSE
2.3000
×
10
-3
9.3824
×
10
-4
2.4190
×
10
-3
5.7567
×
10
-5
R-square
0.9974
0.9996
0.9972
1.0000
Table 1.
Evaluation indicators of four fitting functions
Name
Algorithm principal function
Time complexity
T
(
n
)
Spatial complexity
S
(
n
)
Algorithm
K
̂
12
Formulas(
6
)and(
7
)
[
12
]
O
1
(
n
)
+
O
2
(
n
2
)
=
O
(
n
2
)
O
3
(
n
)
+
O
4
(
1
)
=
O
(
n
)
Algorithm
K
̂
24
Formula(8)
[
12
]
O
1
(
n
)
+
O
2
(
1
)
=
O
(
n
)
O
3
(
0
)
+
O
4
(
1
)
=
O
(
1
)
Algorithm
K
̂
B
e
s
s
e
l
Formulas(
6
)and(
10
)
[
13
]
O
1
(
n
)
+
O
2
(
n
)
=
O
(
n
)
O
3
(
n
)
+
O
4
(
1
)
=
O
(
n
)
Algorithm
K
̂
n
b
Formula(11)
[
14
]
O
1
(
n
)
+
O
2
(
1
)
=
O
(
n
)
O
3
(
0
)
+
O
4
(
1
)
=
O
(
1
)
Algorithm
K
̂
R
F
R
Formula(13)
[
15
]
O
1
(
n
)
+
O
2
(
1
)
=
O
(
n
)
O
3
(
0
)
+
O
4
(
1
)
=
O
(
1
)
Algorithm
K
̂
f
i
t
1
Formula(18)
O
1
(
n
)
+
O
2
(
1
)
=
O
(
n
)
O
3
(
0
)
+
O
4
(
1
)
=
O
(
1
)
Algorithm
K
̂
f
i
t
2
Formula(19)
O
1
(
n
)
+
O
2
(
1
)
=
O
(
n
)
O
3
(
0
)
+
O
4
(
1
)
=
O
(
1
)
Table 2.
Algorithm complexity analysis
Name
Algorithm principal function
Sample of 50000
Sample of 1000
Run 1 time
Run 50 times
Run 1 time
Run 50 times
Algorithm
K
̂
12
Formulas(
6
)and(
7
)
[
12
]
0.076651
0.113190
0.076153
0.083043
Algorithm
K
̂
24
Formula(8)
[
12
]
0.001564
0.091190
0.000167
0.004170
Algorithm
K
̂
B
e
s
s
e
l
Formulas(
6
)and(
10
)
[
13
]
0.004968
0.073789
0.004908
0.006543
Algorithm
K
̂
n
b
Formula(11)
[
14
]
0.002024
0.153798
0.000509
0.059606
Algorithm
K
̂
R
F
R
Formula(13)
[
15
]
0.001836
0.098246
0.000187
0.003937
Algorithm
K
̂
f
i
t
1
Formula(18)
0.000321
0.035244
0.000095
0.001094
Algorithm
K
̂
f
i
t
2
Formula(19)
0.000419
0.036243
0.000107
0.001467
Table 3.
Multiple estimated running time of algorithms
Abstract
Get PDF(in Chinese)
Figures&Tables (8)
Equations (19)
References (16)
Get Citation
Copy Citation Text
Zhongqing Fan, Hong Jiang, Zhining Wang. Estimation of Ricean Factor Based on Fitting[J]. Laser & Optoelectronics Progress, 2023, 60(7): 0706004
Download Citation
EndNote(RIS)
BibTex
Plain Text
Set citation alerts for the article
Tools
Share
Set citation alerts for the article
Save the article for my favorites
Paper Information
Category: Fiber Optics and Optical Communications
Received: Jan. 17, 2022
Accepted: Feb. 18, 2022
Published Online: Apr. 10, 2023
The Author Email: Fan Zhongqing (1300314341@qq.com)
DOI:
10.3788/LOP220553
Recommended Topics
laser devices and laser physics
Lasers and Laser Optics
Laser physics
laser manufacturing
Instrumentation, Measurement and Metrology
Set citation alerts for the article
Please enter your email address
Cancel
Confirm