Data measurement system and method of performing data processing of measurement data

A method of performing data processing of measurement data in a data measurement system including a plurality of measurement apparatuses, the data measurement system including a transmitter that transmits a trigger signal associated with the data processing of the measurement data and a data processing apparatus, the trigger signal including a first group of pulses indicating start timing of the data processing and a second group of pulses indicating end timing of the data processing, the method comprising:

• wirelessly transmitting, by the transmitter, the trigger signal to the plurality of measurement apparatuses;
• obtaining, by the data processing apparatus, data sets which are measured during a period between the start timing and the end timing;
• and
• temporally aligning, by the data processing apparatus, the data sets with each other by aligning start timings of the data sets with each other and aligning end timings of the data sets with each other to obtain the measurement data from the plurality of measurement apparatuses, wherein
• each of the first group of pulses and the second group of pulses includes a first pulse and a second pulse successively transmitted at a prescribed interval,
• the first pulse and the second pulse are different from each other in pulse width,
• the start timing is timing distant by a first prescribed time period from generation of the first pulse in the first group of pulses or the timing distant by a second prescribed time period from generation of the second pulse in the first group of pulses, and
• the end timing is the timing distant by the first prescribed time period from generation of the first pulse in the second group of pulses or the timing distant by the second prescribed time period from generation of the second pulse in the second group of pulses.