Development of 8K UHDTV Wireless Camera Using Millimeter-Wave Band
Wireless cameras have enabled dynamic shooting, making them indispensable in television program production of sporting events and music concerts. NHK has developed an 80-Mbps-class high-definition television (HDTV) wireless camera through orthogonal frequency division multiplexing (OFDM) using millimeter waves in the 42-GHz band for producing various programs. The broadcasting of 4K and 8K ultra-high-definition
television (UHDTV) through satellites started in Japan in 2018, increasing the demand for the realization of ultra-high-quality imaging through 4K and 8K wireless cameras. Thus, we have attempted to increase the transmission capacity to construct an 8K wireless camera using millimeter-waves, while maintaining a small size and light weight.
We developed an 8K UHDTV wireless camera system using millimeter-waves that can be portable. For the first time in the world, we succeeded in transmitting 185-Mbps 8K UHDTV signals as a wireless camera through wireless transmission experiments. We prototyped a compact transmitter with a single-carrier transmission with frequency domain equalization (SC-FDE) that is more robust than OFDM for
power-amplifier distortion and is superior in terms of power efficiency. Then, the 8K UHDTV wireless camera system was constructed by combining the transmitter with a portable video encoder.?In this presentation, we
introduce the prototype 8K UHDTV wireless camera system using millimeter-waves and report the results of laboratory and field wireless transmission experiments. In this study, we firstly realized the portable 8K UHDTV wireless camera prototype system in the world, toward an 8K wireless camera that can wirelessly transmit ultra-high-definition 8K camera video with ultra-low delay.
Yoshifumi Matsusaki | NHK (Japan Broadcasting Corporation) | Tokyo, Japan
Fumiya Yamagishi | NHK (Japan Broadcasting Corporation) | Tokyo, Japan
Tomohiro Shimazaki | NHK (Japan Broadcasting Corporation) | Tokyo, Japan
Fumito Ito | NHK (Japan Broadcasting Corporation) | Tokyo, Japan
Takayuki Nakagawa | NHK (Japan Broadcasting Corporation) | Tokyo, Japan
Naohiko Iai | NHK (Japan Broadcasting Corporation) | Tokyo, Japan
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