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What is processing gain in spread spectrum?
In a spread-spectrum system, the process gain (or “processing gain”) is the ratio of the spread (or RF) bandwidth to the unspread (or baseband) bandwidth. It is usually expressed in decibels (dB).
What is gain signal processing?
In electronics, gain is a measure of the ability of a two-port circuit (often an amplifier) to increase the power or amplitude of a signal from the input to the output port by adding energy converted from some power supply to the signal. It is often expressed using the logarithmic decibel (dB) units (“dB gain”).
Which is better for avoiding jamming?
Explanation: Frequency hopping spread spectrum is better for avoiding jamming.
What’s the difference between spreading gain and processing gain?
For DSSS, bits are known as chips after spreading. The same is depicted in the figure-1. As shown in the figure, Tb is one bit period and Tc is one chip period. 1/Tc is the chip rate which characterise this spread spectrum transmission system. The ratio of information bit duration to chip duration is known as processing gain (PG).
What is the processing gain PG of a spread spectrum signal?
The processing gain PG of a spread spectrum signal can be defined as the ratio of the spreading bandwidth B ss to the minimum required signal bandwidth B d: In DSSS, a narrowband jammer is spread by the PN code at the receiver, thus spreading its power across the band.
What’s the difference between spreading gain and TB?
The same is depicted in the figure-1. As shown in the figure, Tb is one bit period and Tc is one chip period. 1/Tc is the chip rate which characterise this spread spectrum transmission system. The ratio of information bit duration to chip duration is known as processing gain (PG). It is also known as spreading factor.
When does processing gain occur due to OSR?
The oversampling term in (8.26) is often referred to as processing gain. The improvement in SQNR due to OSR occurs only after the signal has been filtered via a channel filter.