Signal Processing - September 2016 - 151
Winners of the SP Cup 2016
Grand Prize: Team Resonance_101
* Bangladesh University of Engineering and Technology,
Bangladesh
* Undergraduate students: Sayeed Shafayet Chowdhury,
Md Billal Hossain, Jayanta Dey, Ashraful Islam, Rakib
Hyder, Md. Samzid bin Hafiz, Ratul Khan, Munif Ishad
Mujib, Tauhiduzzaman Khan Himel, and Uday Saha
* Supervisor: Mohammad Ariful Haque.
Second Prize: Team Hammer Down
* Purdue University, United States
* Undergraduate students: Alexandria Moore, Xiangyu
Qu, Samuel Sowell, Fangjia Zhu, Siqing Wei, Gregory
Dykes, and Christopher Chow
* Supervisor: Stanley Chan
* Graduate Mentor: Benjamin Vondersaar.
Third Prize: Team Vidyut
* Multiuniversity team: Indian Institute of Technology-
Madras, National Institute of Technology-Karnatak,
Surathkal, and Indian Institute of Science-Bangalore
* Undergraduate students: Priyadarshini Savan Roshan,
Pradyumna Byappanahalli Suresha, Aditya Gaonkar P,
and Supriya Nagesh
Participants were asked to design and
implement their own circuit to measure a
power signal and extract and analyze the
ENF traces. After designing the circuit,
they were instructed to use it to collect
recordings from the power grid in which
they live and then analyze these extracted
ENF signals and compare them to what
they extracted from the recordings of grids
A-I provided in the competition. Each
team was instructed to provide approximately ten hours of collected recordings
together with their analysis as part of their
submission for the open competition.
Final competition
After the judging committee evaluated the
submissions from the open competition,
three finalist teams were chosen to
advance to the final competition. Prior to
attending the final event at ICASSP, the
finalist teams were provided with additional training data from three new grids,
which were selected from the recordings
submitted in the open competition by
other teams. The participants were asked
to incorporate this newly acquired data
* Supervisor: Prasanta Kumar Ghosh
* Graduate Mentor: Nisha Meenakshi.
In addition to the three overall winning teams, the SP
Cup 2016 judging committee made the following special
recognitions and honorable mentions.
Special Prize for Sensing Circuit System
* Team "UpatrasECE," University of Patras, Greece
* Team "The ENForcers," University of Novi Sad, Serbia
Special Recognition of Originality
* Team "Hammer Down," Purdue University, United States
Special Recognition of Young Team (student participants in
their freshman or sophomore year of college)
* Team "IIT Hyderabad," Indian Institute of Tech Hyderabad
Honorable Mention for Overall Excellence
* Team "UNStoppable," University of Novi Sad, Serbia
* Team "UpatrasECE," University of Patras, Greece
Honorable Mention for High Classification Accuracy
* Team "USTC2016," University of Science and
Technology of China.
into their learning systems and were
allowed to further refine their systems.
The final SP Cup event was held at the
ICASSP in Shanghai, China, on 20 March
2016. At the beginning of the event, the
participants of the finalist teams were provided with an additional 50 ten-minute
testing samples to combine with the test
samples from the open competition round,
for a total of 150 testing samples. After
submitting the results within an hour,
each team presented its work on the ENF
extraction, the learning system, the sensing circuits, and the corresponding signal
analysis. The final judging committee
convened and selected the first-secondand third-prize winners as well as special
recognitions.
Approaches to identify
grid of origin
As outlined previously, one of the main
goals of the SP Cup competition was to
identify the grid of origin of power and
audio signals containing ENF traces.
Many of the teams extracted the dominant instantaneous frequency around
IEEE Signal Processing Magazine
|
September 2016
|
nominal ENF frequencies over short time
windows and used the features proposed in
[6] and their variations or extensions to
develop a feature set for pattern analysis
and classification. The basic types of features employed, shown in Figure 3, include
1) statistical features related to ENF values
(mean, variance, and range), 2) features
extracted from wavelet analysis of ENF
signals, and 3) features based on autoregressive modeling of ENF signals. Two
examples of other features proposed by
participating teams are histogram-based
features around ENF base and harmonic
frequencies proposed by Team Hammer
Down of Purdue University, United States,
and features based on the extrema in the
ENF signal and the rising edges that can be
present developed by Team UpatrasECE
of the University of Upatras, Greece.
A common strategy for pattern analysis and classification that was employed
by the participating teams, particularly
the three finalist teams, was to differentiate between four different types of
signals: 1) power signals with 50-Hz
nominal ENF, 2) power signals with 60-Hz
151
Table of Contents for the Digital Edition of Signal Processing - September 2016
Signal Processing - September 2016 - Cover1
Signal Processing - September 2016 - Cover2
Signal Processing - September 2016 - 1
Signal Processing - September 2016 - 2
Signal Processing - September 2016 - 3
Signal Processing - September 2016 - 4
Signal Processing - September 2016 - 5
Signal Processing - September 2016 - 6
Signal Processing - September 2016 - 7
Signal Processing - September 2016 - 8
Signal Processing - September 2016 - 9
Signal Processing - September 2016 - 10
Signal Processing - September 2016 - 11
Signal Processing - September 2016 - 12
Signal Processing - September 2016 - 13
Signal Processing - September 2016 - 14
Signal Processing - September 2016 - 15
Signal Processing - September 2016 - 16
Signal Processing - September 2016 - 17
Signal Processing - September 2016 - 18
Signal Processing - September 2016 - 19
Signal Processing - September 2016 - 20
Signal Processing - September 2016 - 21
Signal Processing - September 2016 - 22
Signal Processing - September 2016 - 23
Signal Processing - September 2016 - 24
Signal Processing - September 2016 - 25
Signal Processing - September 2016 - 26
Signal Processing - September 2016 - 27
Signal Processing - September 2016 - 28
Signal Processing - September 2016 - 29
Signal Processing - September 2016 - 30
Signal Processing - September 2016 - 31
Signal Processing - September 2016 - 32
Signal Processing - September 2016 - 33
Signal Processing - September 2016 - 34
Signal Processing - September 2016 - 35
Signal Processing - September 2016 - 36
Signal Processing - September 2016 - 37
Signal Processing - September 2016 - 38
Signal Processing - September 2016 - 39
Signal Processing - September 2016 - 40
Signal Processing - September 2016 - 41
Signal Processing - September 2016 - 42
Signal Processing - September 2016 - 43
Signal Processing - September 2016 - 44
Signal Processing - September 2016 - 45
Signal Processing - September 2016 - 46
Signal Processing - September 2016 - 47
Signal Processing - September 2016 - 48
Signal Processing - September 2016 - 49
Signal Processing - September 2016 - 50
Signal Processing - September 2016 - 51
Signal Processing - September 2016 - 52
Signal Processing - September 2016 - 53
Signal Processing - September 2016 - 54
Signal Processing - September 2016 - 55
Signal Processing - September 2016 - 56
Signal Processing - September 2016 - 57
Signal Processing - September 2016 - 58
Signal Processing - September 2016 - 59
Signal Processing - September 2016 - 60
Signal Processing - September 2016 - 61
Signal Processing - September 2016 - 62
Signal Processing - September 2016 - 63
Signal Processing - September 2016 - 64
Signal Processing - September 2016 - 65
Signal Processing - September 2016 - 66
Signal Processing - September 2016 - 67
Signal Processing - September 2016 - 68
Signal Processing - September 2016 - 69
Signal Processing - September 2016 - 70
Signal Processing - September 2016 - 71
Signal Processing - September 2016 - 72
Signal Processing - September 2016 - 73
Signal Processing - September 2016 - 74
Signal Processing - September 2016 - 75
Signal Processing - September 2016 - 76
Signal Processing - September 2016 - 77
Signal Processing - September 2016 - 78
Signal Processing - September 2016 - 79
Signal Processing - September 2016 - 80
Signal Processing - September 2016 - 81
Signal Processing - September 2016 - 82
Signal Processing - September 2016 - 83
Signal Processing - September 2016 - 84
Signal Processing - September 2016 - 85
Signal Processing - September 2016 - 86
Signal Processing - September 2016 - 87
Signal Processing - September 2016 - 88
Signal Processing - September 2016 - 89
Signal Processing - September 2016 - 90
Signal Processing - September 2016 - 91
Signal Processing - September 2016 - 92
Signal Processing - September 2016 - 93
Signal Processing - September 2016 - 94
Signal Processing - September 2016 - 95
Signal Processing - September 2016 - 96
Signal Processing - September 2016 - 97
Signal Processing - September 2016 - 98
Signal Processing - September 2016 - 99
Signal Processing - September 2016 - 100
Signal Processing - September 2016 - 101
Signal Processing - September 2016 - 102
Signal Processing - September 2016 - 103
Signal Processing - September 2016 - 104
Signal Processing - September 2016 - 105
Signal Processing - September 2016 - 106
Signal Processing - September 2016 - 107
Signal Processing - September 2016 - 108
Signal Processing - September 2016 - 109
Signal Processing - September 2016 - 110
Signal Processing - September 2016 - 111
Signal Processing - September 2016 - 112
Signal Processing - September 2016 - 113
Signal Processing - September 2016 - 114
Signal Processing - September 2016 - 115
Signal Processing - September 2016 - 116
Signal Processing - September 2016 - 117
Signal Processing - September 2016 - 118
Signal Processing - September 2016 - 119
Signal Processing - September 2016 - 120
Signal Processing - September 2016 - 121
Signal Processing - September 2016 - 122
Signal Processing - September 2016 - 123
Signal Processing - September 2016 - 124
Signal Processing - September 2016 - 125
Signal Processing - September 2016 - 126
Signal Processing - September 2016 - 127
Signal Processing - September 2016 - 128
Signal Processing - September 2016 - 129
Signal Processing - September 2016 - 130
Signal Processing - September 2016 - 131
Signal Processing - September 2016 - 132
Signal Processing - September 2016 - 133
Signal Processing - September 2016 - 134
Signal Processing - September 2016 - 135
Signal Processing - September 2016 - 136
Signal Processing - September 2016 - 137
Signal Processing - September 2016 - 138
Signal Processing - September 2016 - 139
Signal Processing - September 2016 - 140
Signal Processing - September 2016 - 141
Signal Processing - September 2016 - 142
Signal Processing - September 2016 - 143
Signal Processing - September 2016 - 144
Signal Processing - September 2016 - 145
Signal Processing - September 2016 - 146
Signal Processing - September 2016 - 147
Signal Processing - September 2016 - 148
Signal Processing - September 2016 - 149
Signal Processing - September 2016 - 150
Signal Processing - September 2016 - 151
Signal Processing - September 2016 - 152
Signal Processing - September 2016 - 153
Signal Processing - September 2016 - 154
Signal Processing - September 2016 - 155
Signal Processing - September 2016 - 156
Signal Processing - September 2016 - 157
Signal Processing - September 2016 - 158
Signal Processing - September 2016 - 159
Signal Processing - September 2016 - 160
Signal Processing - September 2016 - 161
Signal Processing - September 2016 - 162
Signal Processing - September 2016 - 163
Signal Processing - September 2016 - 164
Signal Processing - September 2016 - 165
Signal Processing - September 2016 - 166
Signal Processing - September 2016 - 167
Signal Processing - September 2016 - 168
Signal Processing - September 2016 - 169
Signal Processing - September 2016 - 170
Signal Processing - September 2016 - 171
Signal Processing - September 2016 - 172
Signal Processing - September 2016 - 173
Signal Processing - September 2016 - 174
Signal Processing - September 2016 - 175
Signal Processing - September 2016 - 176
Signal Processing - September 2016 - Cover3
Signal Processing - September 2016 - Cover4
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_201809
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_201807
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_201805
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_201803
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_201801
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_1117
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0917
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0717
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0517
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0317
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0117
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_1116
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0916
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0716
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0516
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0316
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0116
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_1115
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0915
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0715
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0515
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0315
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0115
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_1114
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0914
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0714
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0514
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0314
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0114
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_1113
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0913
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0713
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0513
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0313
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0113
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_1112
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0912
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0712
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0512
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0312
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0112
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_1111
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0911
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0711
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0511
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0311
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0111
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_1110
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0910
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0710
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0510
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0310
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0110
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_1109
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0909
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0709
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0509
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0309
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0109
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_1108
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0908
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0708
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0508
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0308
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0108
https://www.nxtbookmedia.com