영어에서 Spread spectrum 을 사용하는 예와 한국어로 번역
{-}
-
Colloquial
-
Ecclesiastic
-
Ecclesiastic
-
Programming
-
Computer
ArcLight® Spread Spectrum Networking System.
DSSS(direct sequence spread spectrum)….
PF 20ppm Passive Spread Spectrum Oscillator Heat Resistance 3*8mm.
Each transmitted GPS signal is a direct sequence spread spectrum signal.
In some cases, spread spectrum techniques can improve system performance.
DSSS stands for Direct Sequence Spread Spectrum.
It is a chirp spread spectrum based modulation that has low power characteristics like FSK modulation.
In some cases, the communication channel may be a wireless, spread spectrum communication channel.
By using different spread spectrum channels, both types of networks can co-exist on the same hardware platform.
To avoid jamming, WirelessHART uses also FHSS(Frequency Hopping Spread Spectrum).
CAM/BUG/LTE: Analog and Spread spectrum signals of wireless camera, wireless bug, signal jammer and 2G/ 3G/ 4G cell phones, etc….
Information(i.e. the message signal) can be embedded in the spread spectrum signal by several methods.
The spread spectrum signal 160 transmitted continuously from each satellite 120 utilizes a very accurate frequency standard that is achieved using a very accurate atomic clock.
Trusted Wireless 2.0 uses the so-called FHSS(Frequency Hopping Spread Spectrum) method.
Ferrert reported on an experimental application of a single code spread spectrum radio for wireless terminal communications in the IEEE National Telecommunications Conference.
In September, 1996, an independent test was conducted by a hospital before the installation of Cisco Spread Spectrum Systems.
To determine the total amount of traffic that is transmitted over the spread spectrum channel, we must first establish the total size of each discovery packet.
In May 1985, the efforts of Marcus led the FCC to announce experimental ISM bands for commercial application of spread spectrum technology.
The spread spectrum signals(160) continuously transmitted from each satellite(120) utilize a highly accurate frequency standard accomplished with an extremely accurate atomic clock.
Hedy Lamarr and George Antheil invent frequency hopping spread spectrum communication technique.
For example, in a 64 channel CDMA spread spectrum system, particular mutually orthogonal Walsh codes can be selected from the set of 64 Walsh codes within a 64 by 64 Hadamard matrix.
The system 20 may conform to the IEEE standard 802.11"Direct Sequence Spread Spectrum Physical Layer Specification".
Cisco products such as the various spread spectrum radio meet both the FCC and European emission levels required for devices operating in medical environments specifically EN 55011 emission standards.
The"T1A/ELA/IS-95 Mobile Station-Base Station Compatibility Standard for Dual-Mode Wideband Spread Spectrum Cellular System", hereinafter referred to as the IS-95 standard.
As an added benefit of the employed spread spectrum techniques, resistance to interference(also called processing or spreading gain) is also achieved, as is well known in the art of communications.
The encoding of the 3-digit MCC value into a 10-bit binary value for the MCC field is described in 3GPP2 C. S0005-C, entitled“Upper Layer(Layer 3)Signaling Standard for cdma2000 Spread Spectrum Systems,” Section 2.3, which is publicly available.
With the overlay of Spread Spectrum signals into current site infrastructure, mixing of a 3-channel UMTS transmission with a 10 MHz LTE(assuming 10 MHz and not 20 MHz!) due to a transmission system linearity problem would be disastrous.
Shortly thereafter, in 1980, P. Ferrert reported on an experimental application of a single code spread spectrum radio for wireless terminal communications in the IEEE National Telecommunications Conference.
In such embodiments, the spread spectrum techniques employed typically encode identifying information having a relatively low data rate and formed into an identification signal having a narrow bandwidth, referred to herein as X(w),x(t) or x(n).
Alternatively, the system 20 may be employed utilizing the IEEE standard 802.11"Frequency Hopping Spread Spectrum Physical Layer Specification" or any other protocol transmitting portions of packets at varying modulations and data rates.