Data Communication Module 6 Part 12 Direct Sequence Spread Spectrum (DSSS) YouTube

The result of modulating an RF carrier with such a code sequence is to produce a direct-sequence-modulated spread spectrum with ((sin x)/x) 2 frequency spectrum, centered at the carrier frequency. The main lobe of this spectrum (null to null) has a bandwidth twice the clock rate of the modulating code, and the sidelobes have null-to-null.. Abstract. In order to utilize the frequent sign altering in the spreading codes to measure the distance accurately, and to achieve better performance of multiple access, multipath resistance, and anti-interference, direct sequence spread spectrum (DSSS) technology is used in satellite navigation signals. With different spreading chips, the time.

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Data Communication Module 6 Part 12 Direct Sequence Spread Spectrum (DSSS) YouTube

In telecommunications, direct-sequence spread spectrum (DSSS) is a spread-spectrum modulation technique primarily used to reduce overall signal interference.The direct-sequence modulation makes the transmitted signal wider in bandwidth than the information bandwidth. After the despreading or removal of the direct-sequence modulation in the receiver, the information bandwidth is restored, while.. In 802.11 standards, three different modulation/transmission methods are used to transmit wireless signals: 1) Frequency Hopping Spread Spectrum, or FHSS; 2.