frequency division

基本解釋

Through spotlights cost reducing and frequency division utilization it improves system efficiency.
通過聚光降低成本，通過分頻綜合利用提高系統(tǒng)效率。
Goldsmith said that most second-generation, or 2G, cell phones use a combination of time division and frequency division.
戈德史密斯說，大多數(shù)第二代手機(jī)或2G手機(jī)采用時間劃分和頻率劃分相結(jié)合的方式。
Lattice Orthogonal Frequency Division Multiplexing(LOFDM) is a promising technique for high data-rate transmission in double(namely time-frequency) dispersive channel.
是時頻彌散信道上的一種高速數(shù)據(jù)傳輸技術(shù)。

This is known as FDD or frequency division duplex.
FORBES: Will LTE Save Clearwire?
The LTE standard supports FDD (Frequency Division Duplexing) mode adopted by DOCOMO and TDD (Time Division Duplexing) mode expected to be adopted for LTE networks in China and other markets, which will help to further the development of advanced mobile devices by manufacturers worldwide.
ENGADGET: Panasonic, DoCoMo, NEC and Fujitsu create IP for multi-standard LSI chip; supports LTE, GSM, W-CDMA and HSPA+
Qualcomm has an opportunity to lead in the LTE space because it already builds a chipset that has worldwide capabilities (Gobi), and because it has announced that all of its LTE chipsets will support both types of LTE (Frequency Division Duplex and Time Division Duplex) that will be deployed.
FORBES: Winners In The New 4G Wireless Economy

分頻
Two common hardware description languages,Verilog and VHDL,are applied in the models of m sequence,S/P conversion,constellation mapping,DDS,frequency control word,frequency division. In this way,Migration can be taken in FPGA chips from all producers.
設(shè)計中涉及到的m序列、串并轉(zhuǎn)換、星座映射、直接數(shù)字頻率合成器、頻率控制字、分頻等模塊均采用Verilog和VHDL兩種通用硬件描述語言進(jìn)行設(shè)計,以便能夠在所有廠家的FPGA芯片中移植。
頻率劃分
頻率分割