0.0
0.5
1.0
1.5
2.0
2.5
3.0
ISDB-T Adaptive Digital Predistortion
ISDB-T Echo Cancellation
Performance Reference Conditions:ISDB-T On-Channel Repeater/Gap Filler- Based on Avateq’s Universal Adaptive Echo Cancellation Engine;- Supports the following ISDB-T signal bandwidths: 5.575 / 5.573 / 5.572 MHz (mode 1, 2, 3)
Figure I (5/6, 30)33
≥ 30≥ 4230
7.552
2.56 ... 18.944
16.384
Figure II (5/6, 0)40.530
≥ 4237
7.552
2.56 ... 18.944
16.384
Figure III (1/6, -60)4230
≥ 4241
7.552
2.56 ... 18.944
16.384
Operation ConditionsInput signal MER, dBGain margin, dBEcho suppression, dBOutput signal MER, dBProcessing time, usecEcho cancelling window position, usecEcho cancelling window width, usec
Performance Reference Chart:
ISDB-T RF Layer Monitoring Receiver- Based on Avateq’s Monitoring Software Receiver-Analyzer;- ISDB-T transmitter/repeater performance monitor.
5.575 / 5.573 / 5.572 MHz (mode 1, 2, 3)1 405 (mode 1), 2 809 (mode 2), 5 617 (mode 3)1/32, 1/16, 1/8, 1/4DQPSK, QPSK, 16-QAM, 64-QAM- Signal MER/SNR, dB;- Signal RMS, dB;- Signal PAR, dB;- Peak compression, dB;- Signal CCDF.
- AM-AM, AM-PM curve- Output complex LUT array is available for DPD- Group Delay, Amplitude and Phase response- Output complex FIR coefficients available for DPD- Group Delay, Amplitude and Phase responses- Spectrum shoulder levels- Signal MER/SNR- Signal max Group Delay- Spectrum tilt/ripple
ISDB-T Monitoring Receiver CharacteristicsChannel bandwidthCarrier numberGuard intervalConstellationSignal RF layer parameters
RF signal distortions- non-linear
- linear
Output band-path filterDefault set of alarm events
ORDERING INFORMATIONDescriptionActiveCore® Transmitter Efficiency Enhancing Platform for ISDB-T (OEM module)
ActiveCore® Transmitter Efficiency Enhancing Platform for ISDB-T (PCIe card)
ActiveCore® Transmitter Efficiency Enhancing Platform for ISDB-T (1U unit)
ActiveCore® Monitoring Receiver for ISDB-T (OEM module)
ActiveCore® Monitoring Receiver for ISDB-T (PCIe card)
ActiveCore® Monitoring Receiver for ISDB-T (1U unit)
ActiveCore® On-channel Repeater/Gap-Filler for ISDB-T (OEM module)
ActiveCore® On-channel Repeater/Gap-Filler for ISDB-T (PCIe card)
ActiveCore® On-channel Repeater/Gap-Filler for ISDB-T (1U unit)
ActiveCore® Adaptive Linear and Non-linear DPD for ISDB-T (OEM module)
ActiveCore® Adaptive Linear and Non-linear DPD for ISDB-T (PCIe card)
ActiveCore® Adaptive Linear and Non-linear DPD for ISDB-T (1U unit)
Product IDAVQ1010-OEM-ISDBT
AVQ1010-PCI-ISDBT
AVQ1010-SAU-ISDBT
AVQ1020-OEM-ISDBT
AVQ1020-PCI-ISDBT
AVQ1020-SAU-ISDBT
AVQ1030-OEM-ISDBT
AVQ1030-PCI-ISDBT
AVQ1030-SAU-ISDBT
AVQ1040-OEM-ISDBT
AVQ1040-PCI-ISDBT
AVQ1040-SAU-ISDBT
ISDB-T Adaptive Digital Predistorter- Based on Avateq’s Universal Adaptive Digital Predistortion Engine.
≤ 50≤ 20≤ 0Best MER / Best “Shoulder”
≤ 18± 180
≤ 2000≤ 0.1≤ 10 dB240
ISDB-T Adaptive Digital Predistorter CharacteristicsAnalyzed and pre-corrected signal bandwidth, MHzSignal PAR max, dBSignal PAR reduction level compliant with spectrum mask, dBAdaptation criteriaNon-linear DPD:- gain compensation range, dB- phase correction range, degree- compensation of Amplitude and Phase distortion variationsacross signal bandwidth.Liner DPD:- group delay correction, nano sec- inband ripple, dB- tilt or BPF band correction- filter tap spacing, kHz
Linear Digital PredistortionSignal Spectrum
50
60
70
80
90- before DPD
- after DPD
Non-Linear Digital PredistortionSignal Spectrum
0
10
20
30
40
50
60
70
80- before DPD
- after DPD
Non-Linear Digital PredistortionConstellation
- before DPD- after DPD
- before DPD- after DPD
Linear Digital PredistortionConstellation
Linear Digital PredistortionGroup Delay
- before DPD- after DPD
-0.4
-0.3
-0.2
-0.1
0.0
0.1
Non-Linear Digital PredistortionAM-AM
- before DPD- after DPD
Figure I.5 adjacent channels with 6MHz spacingUseful channel -30 dB from adjacent
-10
0
10
20
30
40
50
60
70
80
Figure III.No adjacent channels with 6MHz spacingUseful channel 0 dB from adjacent
-10
0
10
20
30
40
50
60
70
80
90
Non-Linear Digital PredistortionAM-PM
- before DPD- after DPD
-0.8 -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 0.8
3.0
MER Improvement
- before DPD- after DPD
0
10
20
30
40
50
Figure II.5 adjacent channels with 6MHz spacingUseful channel 0 dB from adjacent
-10
0
10
20
30
40
50
60
70
80
Echo 30 dB above useful signal
-80-70-60-50-40-30-20-10
0
30 dB
Echo removed
-80-70-60-50-40-30-20-10
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
ISDB-TStandard Specific DatasheetGap-Filler / Adaptive Predistorter/ Monitoring Receiver
®
ActiveCore® is a registered trademark of Avateq Corp. 2012 © Avateq Corp. All rights reserved.DS-ISDBT-20120412
AVATEQ CORP.3555 - 14th Ave., Unit 18Markham, ON L3R 0H5Canada
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