數(shù)字分頻 digital frequency division
數(shù)字復(fù)接 digital multiplexing
數(shù)字復(fù)接器 digital multiplexer
數(shù)字復(fù)接體系 digital multiplex hierarchy
數(shù)字復(fù)用設(shè)備 digital multiplex equipment
數(shù)字和 digital sum
數(shù)字和之差 digital sum variation
數(shù)字話路擴(kuò)容系統(tǒng) digital circuit multiplication system
數(shù)字基群 primary digital group
數(shù)字集成電路 digital integrated circuit
數(shù)字交換 digital switching
數(shù)字連接 digital connection
數(shù)字鏈路 digital link
數(shù)字濾波器 digital filer
數(shù)字分配架 digital distribution frame
數(shù)字區(qū)段 digital block
數(shù)字色碼 digital color code (DCC)
數(shù)字式尋呼系統(tǒng) digital paging system
數(shù)字速率 digital rate
數(shù)字鎖相環(huán) digital phase-locked loop
數(shù)字填充 digital filling
數(shù)字調(diào)制 digital modulation
數(shù)字通道 digital path
數(shù)字位置 digital position
數(shù)字無線段 digital radio section
數(shù)字無線通道 digital radio path
數(shù)字無線系統(tǒng) digital radio system
數(shù)字系列完整性 digital sequence integrity
數(shù)字信道連接 digital channel link (DCL)
數(shù)字信號 digital signal
數(shù)字信號處理 digital signal process (DSP)
數(shù)字信號的判決瞬時 decision instant of digital signal
數(shù)字信號的有效瞬時 significant instants of a digital signal
數(shù)字信令 digital signalling
數(shù)字選呼系統(tǒng) digital selective calling system
數(shù)字延時器 digital time delayer
數(shù)字有線段 digital line section
數(shù)字有線通道 digital line path
數(shù)字有線系統(tǒng) digital line system
數(shù)字語音編碼 digital speech code
數(shù)字語音插空 digital speech interpolation (DSI)
衰落 fading
衰落包絡(luò) fading envelope
衰落帶寬 fading bandwidth
衰落幅度 amplitude of fading
衰落深度 fading depth
衰落率 fading rate
衰落周期 duration fading
雙T網(wǎng)絡(luò) twin-T network
雙邊帶調(diào)制 double sideband modulation
雙變頻接收機(jī) double conversion receiver
雙波段電臺 two-waveband radio station
雙端同步 double-ended synchronization
雙工、全雙工 duplex, full duplex
雙工操作 duplex operation
雙工頻率間隔 duplex frequency separation
雙工器 duplexer
雙工無線電話機(jī) duplex radio telephone set
雙極型晶體管 bipolar transistor
雙列直插式封裝 dual-in-line package (DIP)
雙向的 bidirectional (both-way)
雙向控制 bilateral control
雙信號方法 two-signal method
雙音多頻制 dual-tone multifrequency system (DTMF)
雙柵極MOS四極管 double gate MOS four terminal devices
雙重調(diào)制 double modulation
水平方向性圖 horizontal directivity pattern
水上數(shù)字選呼系統(tǒng) maritime digital selectivity-calling system
水上移動業(yè)務(wù) maritime mobile service
水聲通信系統(tǒng) hydro-acoustic communication system
水下電話 underwater telephone
水下激光通信 underwater laser communication
順序單音制 individual tone sequential system
順序脈沖單音制 pulsed individual tone sequential system
瞬變過程 transient process
瞬時通信 transient communication
瞬時故障 transient fault
瞬態(tài) transient
瞬態(tài)失真 transient distortion
私人通話 private conversation
四電平調(diào)頻 4-level frequency modulation (4-level FM)
四列扁平封裝 quad flat package (QFP)
四線交換 four-wire switching
四相差分相移鍵控 quadrature differential phase shift keying (QDPSK)
四相相移鍵控 QPSK, quadrature phase shift keying
送話器 telephone transmitter
搜索載波 searching carrier
算信 compunication
隨機(jī)存取存儲器 random assignment multiple access (ALOHA)
隨機(jī)服務(wù) service in random order
隨機(jī)數(shù) random number
隨機(jī)誤差 random error
隨機(jī)噪聲 random noise
隨路信令 channel associated signalling
縮短循環(huán)碼 shorten cyclic codes
縮位撥號 abbreviated dial system
鎖定建立時間 locked set up time
鎖定時間 locking time
鎖相捕獲 phase-lock acquisition
鎖相環(huán) phase-locked loop
鎖相環(huán)大信號特性 PLL strong signal characteristic