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单词 SSTV
释义

SSTV

中文百科

慢扫描电视 Slow-scan television

(重定向自SSTV)
SSTV传输通常包括电台呼号,RST代码报告,业余无线电行话。
一个SSTV音频文档的更高的频谱分析页,由Adobe Audition创建
宇航员戈尔登·库勃在水星9号中的慢扫描电视广播

慢扫描电视Slow-scan television)是业余无线电爱好者的一种主要图片传输方法,慢扫描电视通过无线电传输和接收单色或彩色静态图片。

慢扫描电视的一个术语名称是窄带电视。广播电视需要6MHz的带宽,因为帧速为25到30fps。慢扫描电视的带宽只有3kHz,因此慢扫描电视是一种慢得多的静态图像传输方法,通常每帧需要持续8秒或若干分钟。

业余无线电操作员通常在短波(或高频)、甚高频、超高频波段使用慢扫描电视。

英语百科

Slow-scan television 慢扫描电视

(重定向自SSTV)
SSTV transmissions often include station call signs, RST reception reports, and radio amateur jargon.
Astronaut Gordon Cooper, SSTV transmission from Faith 7
NASA slow scan image from the Moon

Slow-scan television (SSTV) is a picture transmission method used mainly by amateur radio operators, to transmit and receive static pictures via radio in monochrome or color.

A technical term for SSTV is narrowband television. Analog broadcast television requires at least 6 MHz wide channels, because it transmits 25 or 30 picture frames per second (in the NTSC, PAL or SECAM color systems), but SSTV usually only takes up to a maximum of 3 kHz of bandwidth. It is a much slower method of still picture transmission, usually taking from about eight seconds to a couple of minutes, depending on the mode used, to transmit one image frame.

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