In Chapter 2, two spectrum spreading methods were described: chirp and direct sequence. Other methods are frequency hopping and time hopping, as well as combinations of the four. This chapter deals ...

There are three basic types of spread spectrum signals: frequency hopping, chirp, and direct sequence. Each approach spreads the signal. However, the nature of the power versus frequency versus time ...

In this project I present Modified Blue FMCW, which is a joint radar and communication spread spectrum system. The system is based on FSK modulating the widely used FMCW waveform by varying the ...

The investigation method can be adapted both to direct sequence and frequency hopping spread spectrum techniques. In the paper only the narrowband interference case is treated.

[BeMasher]’s Itron C1SR smart meter broadcasts both interval data and standard consumption in the 915MHz ISM band using a Manchester encoded, frequency hopping spread spectrum protocol.

This proposal aims to outline the development of custom firmware for the ESP32, which will enable it to interface with a SAMD51 chipset-based board and serve as the RF module in a Frequency-hopping ...

I suggest that you start by having a look at our SimpliciTI 1.2.0. It does frequency hopping on a CC1101 and the source can tell you have we did it. i want to use CC1101EM and SmartRF04EB for ...

Abstract: Already before WW1, the general principles of using frequency agility to avoid detection and jamming had been proposed and actually used on a small scale. However, the limitations of the ...

The SS Microhopper is a frequency hopping spread spectrum transceiver (FHSS), is roughly the size of a postage stamp, and transmits data up to two miles line of sight (LOS). It is ideal for industrial ...

A wireless modulation method that rapidly changes the center frequency of a transmission. See spread spectrum and 802.11. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires ...

Time-hopping ... to form hybrid spread-spectrum (SS) systems, TH is strictly speaking a non-SS technique. Spreading of the spectrum is caused by other factors associated with TH, such as using pulses ...

Frequency-hopping spread spectrum devices are an option that will automatically change the frequency of your wifi signal, making it more difficult to use an RF jammer to disrupt the wifi connection to ...