Install Some Dependencies:

sudo apt-get install cmake libncurses5-dev liblapack-dev libblas-dev libboost-thread-dev libboost-system-dev libitpp-dev librtlsdr-dev libfftw3-dev

Down And Unpack The Software:

wget http://rfhead.net/sats/LTE-Cell-Scanner_rpi.tar.gz

tar -xzf LTE-Cell-Scanner_rpi.tar.gz

Let's cd Into The Dir:

cd LTE-Cell-Scanner

mkdir build
cd build

Now Run The CMAKE Command:

cmake ../ -DINSTALL_UDEV_RULES=ON

Let's Run The Make Command:

make

After Make Is Done:

sudo make install 

To Start The Software:

cd src/

./CellSearch --freq-start 800e6 --freq-end 8750e6

To Start LTE Tracker:

LTE-Tracker -f 1890000000

Capture To And Reload The File:
Ex:

./src/CellSearch --freq-start 1860e6 --recbin a.bin

Save The Signal As A .bin File, While Searching At Frequency Of 1.86GHz.

./src/CellSearch --loadbin a.bin