Non-Invasive Fetal Electrocardiogram Database

This database contains a series of 55 multichannel abdominal non-invasive fetal electrocardiogram (FECG) recordings, taken from a single subject between 21 to 40 weeks of pregnancy. The records have variable durations, and were taken weekly (two or more records were acquired during some weeks). These records may be very useful for testing signal separation algorithms.

The FECGs in this collection were amplified using a g.BSamp Biosignal Amplifier. The data have been stored in EDF/EDF+ format.

Recording information

• 2 thoracic signals
• 3 or 4 abdominal signals (most records include 4).
• Electrode positioning was varied in order to improve SNR.
• The analog amplifier also includes a 50Hz notch filter switched ON.
• Ag-AgCl transducer.
• Bandwidth: 0.01Hz-100Hz (synchronous sampling of all signals)
• Sampling rate: 1kHz.
• Resolution: 16 bits.
• Gains and input ranges are included in the records in EDF format.
• Patient Identification contains the gestational age. The format is week+day.

The database was prepared for PhysioNet by:

Marcelino Martinez Sober, PhD (email: marcelino.martinez at uv dot es)
Jorge Granado Marco
Digital Signal Processing Group (GPDS)
Electronics Engineering Department
ETSE Escuela Técnica Superior de Ingeniería
Universitat de València
C/ Dr. Moliner, 50, 46100 Burjassot (Valencia) Spain

 Name                    Last modified      Size  Description
 Parent Directory                             -   
 ANNOTATORS              14-Mar-2008 16:12   21   list of annotators
 RECORDS                 08-Feb-2008 14:10  715   list of record names
 ecgca102.edf            05-Sep-2007 14:38  2.6M  
 ecgca102.edf.qrs        14-Mar-2008 14:09  878   beat annotations
 ecgca115.edf            05-Sep-2007 14:38  8.5M  
 ecgca115.edf.qrs        14-Mar-2008 14:09  2.8K  beat annotations
 ecgca127.edf            05-Sep-2007 14:38  8.4M  
 ecgca127.edf.qrs        14-Mar-2008 14:09  2.6K  beat annotations
 ecgca154.edf            05-Sep-2007 14:38  3.1M  
 ecgca154.edf.qrs        14-Mar-2008 14:09  1.1K  beat annotations
 ecgca192.edf            05-Sep-2007 14:38  3.0M  
 ecgca192.edf.qrs        14-Mar-2008 14:09  1.0K  beat annotations
 ecgca244.edf            05-Sep-2007 14:38  8.0M  
 ecgca244.edf.qrs        14-Mar-2008 14:09  2.4K  beat annotations
 ecgca252.edf            05-Sep-2007 14:38  7.2M  
 ecgca252.edf.qrs        14-Mar-2008 14:09  2.3K  beat annotations
 ecgca274.edf            05-Sep-2007 14:38  3.9M  
 ecgca274.edf.qrs        14-Mar-2008 14:09  1.4K  beat annotations
 ecgca290.edf            05-Sep-2007 14:38   14M  
 ecgca290.edf.qrs        14-Mar-2008 14:09  4.2K  beat annotations
 ecgca300.edf            05-Sep-2007 14:38  1.4M  
 ecgca300.edf.qrs        14-Mar-2008 14:09  526   beat annotations
 ecgca308.edf            05-Sep-2007 14:38  8.1M  
 ecgca308.edf.qrs        14-Mar-2008 14:09  2.5K  beat annotations
 ecgca323.edf            05-Sep-2007 14:38  4.0M  
 ecgca323.edf.qrs        14-Mar-2008 14:09  1.5K  beat annotations
 ecgca368.edf            05-Sep-2007 14:38  4.4M  
 ecgca368.edf.qrs        14-Mar-2008 14:09  1.5K  beat annotations
 ecgca384.edf            05-Sep-2007 14:38  5.8M  
 ecgca384.edf.qrs        14-Mar-2008 14:09  1.7K  beat annotations
 ecgca392.edf            05-Sep-2007 14:38  4.3M  
 ecgca392.edf.qrs        14-Mar-2008 14:09  1.4K  beat annotations
 ecgca410.edf            05-Sep-2007 14:38  1.4M  
 ecgca410.edf.qrs        14-Mar-2008 14:09  534   beat annotations
 ecgca416.edf            05-Sep-2007 14:38  3.7M  
 ecgca416.edf.qrs        14-Mar-2008 14:09  1.2K  beat annotations
 ecgca436.edf            05-Sep-2007 14:39  6.8M  
 ecgca436.edf.qrs        14-Mar-2008 14:09  2.1K  beat annotations
 ecgca444.edf            05-Sep-2007 14:39   16M  
 ecgca444.edf.qrs        14-Mar-2008 14:09  4.9K  beat annotations
 ecgca445.edf            05-Sep-2007 14:39  1.8M  
 ecgca445.edf.qrs        14-Mar-2008 14:09  650   beat annotations
 ecgca473.edf            05-Sep-2007 14:39  2.3M  
 ecgca473.edf.qrs        14-Mar-2008 14:09  796   beat annotations
 ecgca515.edf            05-Sep-2007 14:39  9.5M  
 ecgca515.edf.qrs        14-Mar-2008 14:09  3.0K  beat annotations
 ecgca571.edf            05-Sep-2007 14:39   11M  
 ecgca571.edf.qrs        14-Mar-2008 14:09  3.3K  beat annotations
 ecgca585.edf            05-Sep-2007 14:39  6.3M  
 ecgca585.edf.qrs        14-Mar-2008 14:09  2.0K  beat annotations
 ecgca595.edf            06-Sep-2007 21:51  4.0M  
 ecgca595.edf.qrs        14-Mar-2008 14:09  1.3K  beat annotations
 ecgca597.edf            05-Sep-2007 14:39   17M  
 ecgca597.edf.qrs        14-Mar-2008 14:09  5.2K  beat annotations
 ecgca621.edf            05-Sep-2007 14:39   12M  
 ecgca621.edf.qrs        14-Mar-2008 14:09  3.8K  beat annotations
 ecgca629.edf            05-Sep-2007 14:39  4.5M  
 ecgca629.edf.qrs        14-Mar-2008 14:09  1.4K  beat annotations
 ecgca649.edf            05-Sep-2007 14:39   13M  
 ecgca649.edf.qrs        14-Mar-2008 14:09  4.8K  beat annotations
 ecgca659.edf            05-Sep-2007 14:39  7.3M  
 ecgca659.edf.qrs        14-Mar-2008 14:09  2.2K  beat annotations
 ecgca699.edf            05-Sep-2007 14:39  3.9M  
 ecgca699.edf.qrs        14-Mar-2008 14:09  1.3K  beat annotations
 ecgca711.edf            05-Sep-2007 14:39  9.8M  
 ecgca711.edf.qrs        14-Mar-2008 14:09  3.0K  beat annotations
 ecgca733.edf            05-Sep-2007 14:39   14M  
 ecgca733.edf.qrs        14-Mar-2008 14:09  4.0K  beat annotations
 ecgca746.edf            05-Sep-2007 14:39  9.7M  
 ecgca746.edf.qrs        14-Mar-2008 14:09  2.9K  beat annotations
 ecgca748.edf            05-Sep-2007 14:39  3.1M  
 ecgca748.edf.qrs        14-Mar-2008 14:09  1.1K  beat annotations
 ecgca771.edf            05-Sep-2007 14:40   32M  
 ecgca771.edf.qrs        14-Mar-2008 14:09  9.2K  beat annotations
 ecgca776.edf            05-Sep-2007 14:40  5.8M  
 ecgca776.edf.qrs        14-Mar-2008 14:09  1.9K  beat annotations
 ecgca811.edf            05-Sep-2007 14:40  3.2M  
 ecgca811.edf.qrs        14-Mar-2008 14:09  1.1K  beat annotations
 ecgca816.edf            06-Sep-2007 21:51  7.8M  
 ecgca816.edf.qrs        14-Mar-2008 14:10  2.4K  beat annotations
 ecgca826.edf            05-Sep-2007 14:40  2.6M  
 ecgca826.edf.qrs        14-Mar-2008 14:10  966   beat annotations
 ecgca840.edf            05-Sep-2007 14:40  3.7M  
 ecgca840.edf.qrs        14-Mar-2008 14:10  1.1K  beat annotations
 ecgca848.edf            05-Sep-2007 14:40  4.2M  
 ecgca848.edf.qrs        14-Mar-2008 14:10  1.3K  beat annotations
 ecgca864.edf            05-Sep-2007 14:40  7.4M  
 ecgca864.edf.qrs        14-Mar-2008 14:10  2.3K  beat annotations
 ecgca868.edf            05-Sep-2007 14:40  2.6M  
 ecgca868.edf.qrs        14-Mar-2008 14:10  914   beat annotations
 ecgca876.edf            05-Sep-2007 14:40  2.3M  
 ecgca876.edf.qrs        14-Mar-2008 14:10  858   beat annotations
 ecgca880.edf            05-Sep-2007 14:40  5.1M  
 ecgca880.edf.qrs        14-Mar-2008 14:10  1.5K  beat annotations
 ecgca886.edf            05-Sep-2007 14:40  4.9M  
 ecgca886.edf.qrs        14-Mar-2008 14:10  1.5K  beat annotations
 ecgca896.edf            05-Sep-2007 14:40  3.5M  
 ecgca896.edf.qrs        14-Mar-2008 14:10  1.1K  beat annotations
 ecgca900.edf            05-Sep-2007 14:40  1.1M  
 ecgca900.edf.qrs        14-Mar-2008 14:10  420   beat annotations
 ecgca902.edf            05-Sep-2007 14:40  3.2M  
 ecgca902.edf.qrs        14-Mar-2008 14:10  1.1K  beat annotations
 ecgca906.edf            05-Sep-2007 14:40   24M  
 ecgca906.edf.qrs        14-Mar-2008 14:10  7.0K  beat annotations
 ecgca968.edf            05-Sep-2007 14:40  6.6M  
 ecgca968.edf.qrs        14-Mar-2008 14:10  2.2K  beat annotations
 ecgca986.edf            05-Sep-2007 14:40  3.5M  
 ecgca986.edf.qrs        14-Mar-2008 14:10  1.2K  beat annotations
 ecgca997.edf            05-Sep-2007 14:40  1.9M  
 ecgca997.edf.qrs        14-Mar-2008 14:10  626   beat annotations
 ecgca998.edf            05-Sep-2007 14:40  2.6M  
 ecgca998.edf.qrs        14-Mar-2008 14:10  964   beat annotations

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