The L1 band of the global positioning system (GPS), is centered at 1.57542 GHz and has two overlapping spread-spectrum e

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The L1 band of the global positioning system (GPS), is centered
at 1.57542 GHz and has two overlapping spread-spectrum encoded
signals. The stronger of these is the coarse acquisition (C/A)
signal with an information bit rate of 50 bits/s and a transmission
rate of 1.023 million chips per second using BPSK modulation with
an RF bandwidth of 2.046 MHz. In ideal conditions the C/A signal
received has a power of −130 dBm. A GPS receiver has an antenna
noise temperature is of 290 K. (a) What is the processing gain? (b)
What is the noise in dBm received in the 2.046 MHz bandwidth? (c)
What is the SNR in decibels? (d) If a C/A signal is received from
each of 10 satellites (so there are 9 interfering signals), what is
the total interference power for one satellite’s C/A signal? (e)
With respect to just one of the C/A signals, what is the SINR
(signal to interference plus noise ratio) at the receiver? (f) If
the receiver does not contribute noise, what is the effective SNR
of the despread bitstream from each satellite? (g) If the required
minimum effective SNR is 6 dB, what is the minimum acceptable
power, in dBm, of the GPS signal received from one
satellite?