SSB - SS B

Japanese: SSB - えすえすびー

…Of these components, only both sidebands carry information, and only one of them is necessary for communication. The method of transmitting both sidebands is called double sideband (DSB) modulation, and the method of transmitting only the upper or lower sideband is called single sideband (SSB) modulation. In either method, a carrier wave may or may not be transmitted. …

From [Single Sideband Modulation]

…Also called SSB. An amplitude modulated signal has three frequency components: the carrier, the upper sideband, and the lower sideband. …

*Some of the terminology that mentions "SSB" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…これらの成分の中で情報を有する部分は両方の側波帯のみであり，さらに，通信に必要な部分はそれらのうちのいずれか一方のみである。両側波帯とも伝送する方式を両側波帯double sideband(DSB)変調，上または下側波帯の一方のみを伝送する方式を単側波帯single sideband(SSB)変調という。いずれの方式においても，搬送波を伝送する場合と伝送しない場合がある。…